MHT CET PYQs for Wave optics with Solutions: Practice MHT CET Previous Year Questions

Content Curator | Updated on - Oct 27, 2026

Wave Optics is a Class 12 chapter in the Physics section of the MHT CET for candidates who are preparing for the PCM (Physics, Chemistry, and Mathematics).

The key topics covered in Wave Optics PYQs are:

Interference and Young's double slit experiment
Biprism experiment
Diffraction from a single slit
Resolving power
Polarisation and Malus's law

Practising Wave Optics MHT CET PYQ helps candidates to understand question pattern, improve calculation speed, and identify concepts which were asked in previous exams.

Based on chapter-wise analysis of the MHT CET Physics paper, you can get about 3 marks per paper by covering Wave Optics. The chapter recorded 224 questions across the 80 shifts in the data, and 94 of them came in the 2025 and 2026 papers, where it contributed about 5.7% per shift.

MHT CET Wave Optics Chapter: Question Count, Marks and Weightage:

2.71 Average questions per shift (2018-2026)	94 Questions in the 2025 and 2026 papers (33 shifts)
224 Questions in the PDF (2016-2026)	5.4% Estimated Physics paper weightage (5.7% in 2025-2026)

The PDF holds 224 questions from MHT CET 2026 to 2016, newest first, each with its exam date and shift. Options are as printed and answer keys are not included.

Wave Optics PYQ Statistics (2022-2026)

The table below shows the number of questions asked in MHT CET Wave Optics PYQs. Every shift has 50 Physics questions, so the last column is the average per shift divided by 50.

Year	Total Questions (across shifts)	Shifts in the Data	Average per Shift	Weightage (out of 50 Physics Qs)
2026	46	16	2.88	5.8%
2025	48	17	2.82	5.6%
2024	48	18	2.67	5.3%
2023	35	12	2.92	5.8%
2022	2	1	2.00	4.0%

The 2018 to 2021 papers in the PDF add 38 more questions: 2021 had 25, 2020 had 6, 2019 had 6, 2018 had 1; the papers before 2018 add 4 from 2017, 3 from 2016.

MHT CET Wave Optics Important Questions: Based on the Last 5 Years

The major types of questions asked from Wave Optics in MHT CET cover the following topics:

Topic	Questions in the PDF	Questions in 2022-2026	Average per Shift (2022-2026)
Diffraction and resolving power	57	45	0.70
Polarisation, polaroids and Brewster's angle	19	16	0.25
Wavefronts, refraction and the corpuscular theory	21	21	0.33
Interference, Young's double slit and biprism experiments	127	97	1.52

Pair PYQs with Other Study Material for MHT CET 2027

Click on the link to practise problems and time management skills:

Resource	Link
MHT CET Sample Paper	Check Here
MHT CET Mock Test	Check Here

Question Style in MHT CET Wave Optics PYQs

Every question in this PDF is a single-correct MCQ. Questions on interference and Young's double slit experiment form the largest group.

Question Style	What it Tests
Single slit diffraction	What the angular width of the central maximum does not depend upon, and the wavelength when the first maximum is at 30°
Biprism and double slit	The distance between the 4th and 13th bright band on the same side, and the intensity when the path difference is a given fraction of the wavelength
Resolving power	How to improve the resolving power of a microscope or a telescope
Polarisation	Unpolarised light of 64 W/m² passing through three polarisers, and a ray incident at the polarising angle on an air-glass surface
Wavefronts	A plane wavefront of width x refracted at an air-water interface, and a thin mica sheet placed in the path of one beam

How to Use the Wave Optics PYQ PDF for MHT CET

Start with the 2025 and 2026 papers first, because they hold 94 of the 224 questions.
Revise the fringe width β = λD/d, the single slit condition a sinθ = nλ and Malus's law I = I₀ cos²θ.
For the polariser questions, apply the factor 1/2 for the first polariser and then cos² for each following one.
Solve year-wise PYQs by timing yourself, as time management is crucial.
Re-attempt only the questions you got wrong, and note which formula or step you missed.

Video: Wave Optics PYQs and MCQs

Source: Physics Paathshaala

Wave Optics PYQ for MHT CET Physics FAQs

Ques. How many questions come from Wave Optics every year?

Ans. In this PDF, the questions are 46 from 2026, 48 from 2025, 48 from 2024, 35 from 2023 and 2 from 2022 and the rest from earlier papers. In 2025 and 2026 together the chapter had 94 questions across 33 shifts, about 2.85 per shift.

Ques. Which topics are asked most frequently in MHT CET Wave Optics?

Ans. Interference, Young's double slit and biprism experiments is the largest group with 127 of the 224 questions, about 57%.

Ques. What kind of questions are asked from Wave Optics?

Ans. Single-correct MCQs. Common ones ask for the fringe width or band positions in a double slit or biprism experiment, the angular width of a diffraction pattern, or the intensity after polarisers.

Ques. What is the best way to practise Wave Optics PYQs?

Ans. First solve the 2025 and 2026 questions completely, then the older ones, and finally re-attempt the questions you got wrong.

Ques. Can I score full marks from Wave Optics?

Ans. In 2025 and 2026 together the chapter had 94 questions across 33 shifts. Learning the fringe width, single slit and Malus's law formulas is enough to secure it. Each Physics question in MHT CET is worth 1 mark.

Ques. Does the Wave Optics PYQ PDF include solutions?

Ans. No. The PDF contains the questions with their exam date and shift, without answer keys or solutions.

1.
When source of sound moves towards a stationary observer, the apparent frequency heard by him
- increases and wavelength also increases.
- increases while wavelength decreases.
- remains the same while wavelength decreases.
- decreases and wavelength remains the same.
View Solution
2.
A radioactive element $^{242}_{92}X$ emits two $\alpha$ particles, one electron and two positrons. The product nucleus is represented by $^{234}_P Y$. The value of P is
- 87
- 85
- 92
- 96
View Solution
3.
In a Young's double-slit experiment, the distance between the slits is $ 0.2 \, \text{mm} $ and the distance between the screen and the slits is $ 2 \, \text{m} $. If the wavelength of the light used is $ 600 \, \text{nm} $, calculate the distance between the two adjacent bright fringes.
- $ 0.3 \, \text{mm} $
- $ 0.6 \, \text{mm} $
- $ 1.2 \, \text{mm} $
- $ 1.5 \, \text{mm} $
View Solution
4.
What is the frequency of a wave with a wavelength of $ 2 \, \text{m} $ and a velocity of $ 4 \, \text{m/s} $?
- $ 2 \, \text{Hz} $
- $ 0.5 \, \text{Hz} $
- $ 1 \, \text{Hz} $
- $ 4 \, \text{Hz} $
View Solution
5.
At any time $ t $, the co-ordinates of moving particle are $ x = at^2 $ and $ y = bt^2 $. The speed of the particle is
- $ 2t\sqrt{a^2 + b^2} $
- $ 2t\sqrt{a^2 - b^2} $
- $ 2t(a + b) $
- $ \frac{2t}{\sqrt{a^2+b^2}} $
View Solution
6.
A light wave of wavelength ‘λ’ is incident on a slit of width ‘d’. The resulting diffraction pattern is observed on a screen at a distance ‘D’.If linear width of the principal maximum is equal to the width of the slit, then the distance D is
- $\frac {2λ^2}{d}$
- $\frac {d}{λ}$
- $\frac {d^2}{2λ}$
- $\frac {2λ}{d}$
View Solution
7.
The fundamental frequency of a closed pipe of length $L$ is equal to the second overtone of a pipe open at both the ends of length (XL). The value of X is (Neglect end correction)
- $4$
- $5$
- $6$
- $7$
View Solution
8.
Two polaroids are placed in the path of unpolarised beam of intensity ' $\text{I}_0$ ' such that no light is emitted from the second polaroid. If a third polaroid whose polarisation axis makes an angle ' $\theta$ ' with the polarisation axis of first polaroid is placed between these polaroids then the intensity of light emerging from the last polaroid will be}
- $\frac{\text{I}_0}{4}(\sin 2\theta)^2$
- $\frac{\text{I}_0}{8}(\sin 2\theta)^2$
- $\frac{\text{I}_0}{4}\sin^2 \theta$
- $\frac{\text{I}_0}{8}\sin^2 \theta$
View Solution
9.
According to corpuscular theory of light, Which is NOT the property of light?
- The velocity of light does not change after reflection
- Light travels in a straight line
- The velocity of light in air is greater than in glass
- The velocity of light changes after refraction
View Solution
10.
Two bodies A and B at temperatures ' $\text{T}_1$ ' $\text{K}$ and ' $\text{T}_2$ ' $\text{K}$ respectively have the same dimensions. Their emissivities are in the ratio $16 : 1$. At $\text{T}_1 = x\text{T}_2$, they radiate the same amount of heat per unit area per unit time. The value of $x$ is
- 8
- 4
- 2
- 0.5
View Solution
11.
A light ray passes from air (refractive index $ n_1 = 1 $) into water (refractive index $ n_2 = 1.33 $). If the angle of incidence is $ 30^\circ $, what is the angle of refraction in the water?
- $ 22^\circ $
- $ 30^\circ $
- $ 23.6^\circ $
- $ 40^\circ $
View Solution
12.
The instantaneous value of current in an a.c. circuit is $I = 3 \sin (50\pi t + \frac{\pi}{4})\text{A}$. The current will be maximum for the first time at
- $\frac{1}{50} \text{ s}$
- $\frac{1}{100} \text{ s}$
- $\frac{1}{200} \text{ s}$
- $\frac{1}{600} \text{ s}$
View Solution
13.
In biprism experiment the maximum intensity is ' $I_0$ '. If the path difference between the two interfering waves is ' $\lambda/4$ ' then intensity at the point on the screen is $\left[ \sin 45^\circ = \cos 45^\circ = \frac{1}{\sqrt{2}} \right]$
- $\frac{I_0}{4}$
- $\frac{I_0}{3}$
- $\frac{I_0}{2}$
- $I_0$
View Solution
14.
A body when projected at an angle $ \theta $ with the horizontal reaches a maximum height $ H $. The time of flight of the body will be ( $ g $ = acceleration due to gravity)
- $ \frac{1}{2} \sqrt{\frac{2H}{g}} $
- $ \sqrt{\frac{g}{2H}} $
- $ 2 \sqrt{\frac{2H}{g}} $
- $ \sqrt{\frac{2H}{g}} $
View Solution
15.
The fundamental frequency of sonometer wire is 'n'. If the tension and length are increased 3 times and diameter is increased twice, the new frequency will be
- $\sqrt{\frac{3}{2}}n$
- $\frac{\sqrt{3}}{2}n$
- $\frac{n}{2\sqrt{3}}$
- $2\sqrt{3}n$
View Solution

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MHT CET PYQs for Wave optics with Solutions: Practice MHT CET Previous Year Questions

Wave Optics PYQ Statistics (2022-2026)

MHT CET Wave Optics Important Questions: Based on the Last 5 Years

Pair PYQs with Other Study Material for MHT CET 2027

Question Style in MHT CET Wave Optics PYQs

How to Use the Wave Optics PYQ PDF for MHT CET

Video: Wave Optics PYQs and MCQs

Wave Optics PYQ for MHT CET Physics FAQs

1.
When source of sound moves towards a stationary observer, the apparent frequency heard by him

2.
A radioactive element $^{242}_{92}X$ emits two $\alpha$ particles, one electron and two positrons. The product nucleus is represented by $^{234}_P Y$. The value of P is

3.
In a Young's double-slit experiment, the distance between the slits is \( 0.2 \, \text{mm} \) and the distance between the screen and the slits is \( 2 \, \text{m} \). If the wavelength of the light used is \( 600 \, \text{nm} \), calculate the distance between the two adjacent bright fringes.

4.
What is the frequency of a wave with a wavelength of \( 2 \, \text{m} \) and a velocity of \( 4 \, \text{m/s} \)?

5.
At any time \( t \), the co-ordinates of moving particle are \( x = at^2 \) and \( y = bt^2 \). The speed of the particle is

6.
A light wave of wavelength ‘λ’ is incident on a slit of width ‘d’. The resulting diffraction pattern is observed on a screen at a distance ‘D’.If linear width of the principal maximum is equal to the width of the slit, then the distance D is

7.
The fundamental frequency of a closed pipe of length \(L\) is equal to the second overtone of a pipe open at both the ends of length (XL). The value of X is (Neglect end correction)

9.
According to corpuscular theory of light, Which is NOT the property of light?

10.
Two bodies A and B at temperatures ' $\text{T}_1$ ' $\text{K}$ and ' $\text{T}_2$ ' $\text{K}$ respectively have the same dimensions. Their emissivities are in the ratio $16 : 1$. At $\text{T}_1 = x\text{T}_2$, they radiate the same amount of heat per unit area per unit time. The value of $x$ is

11.
A light ray passes from air (refractive index \( n_1 = 1 \)) into water (refractive index \( n_2 = 1.33 \)). If the angle of incidence is \( 30^\circ \), what is the angle of refraction in the water?

12.
The instantaneous value of current in an a.c. circuit is \(I = 3 \sin (50\pi t + \frac{\pi}{4})\text{A}\). The current will be maximum for the first time at

13.
In biprism experiment the maximum intensity is ' \(I_0\) '. If the path difference between the two interfering waves is ' \(\lambda/4\) ' then intensity at the point on the screen is \(\left[ \sin 45^\circ = \cos 45^\circ = \frac{1}{\sqrt{2}} \right]\)

14.
A body when projected at an angle \( \theta \) with the horizontal reaches a maximum height \( H \). The time of flight of the body will be ( \( g \) = acceleration due to gravity)

15.
The fundamental frequency of sonometer wire is 'n'. If the tension and length are increased 3 times and diameter is increased twice, the new frequency will be

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Wave Optics PYQ Statistics (2022-2026)

MHT CET Wave Optics Important Questions: Based on the Last 5 Years

Pair PYQs with Other Study Material for MHT CET 2027

Question Style in MHT CET Wave Optics PYQs

How to Use the Wave Optics PYQ PDF for MHT CET

Video: Wave Optics PYQs and MCQs

Wave Optics PYQ for MHT CET Physics FAQs

1.When source of sound moves towards a stationary observer, the apparent frequency heard by him

2.A radioactive element $^{242}_{92}X$ emits two $\alpha$ particles, one electron and two positrons. The product nucleus is represented by $^{234}_P Y$. The value of P is

3.In a Young's double-slit experiment, the distance between the slits is \( 0.2 \, \text{mm} \) and the distance between the screen and the slits is \( 2 \, \text{m} \). If the wavelength of the light used is \( 600 \, \text{nm} \), calculate the distance between the two adjacent bright fringes.

4.What is the frequency of a wave with a wavelength of \( 2 \, \text{m} \) and a velocity of \( 4 \, \text{m/s} \)?

5.At any time \( t \), the co-ordinates of moving particle are \( x = at^2 \) and \( y = bt^2 \). The speed of the particle is

6.A light wave of wavelength ‘λ’ is incident on a slit of width ‘d’. The resulting diffraction pattern is observed on a screen at a distance ‘D’.If linear width of the principal maximum is equal to the width of the slit, then the distance D is

7.The fundamental frequency of a closed pipe of length \(L\) is equal to the second overtone of a pipe open at both the ends of length (XL). The value of X is (Neglect end correction)

9.According to corpuscular theory of light, Which is NOT the property of light?

10.Two bodies A and B at temperatures ' $\text{T}_1$ ' $\text{K}$ and ' $\text{T}_2$ ' $\text{K}$ respectively have the same dimensions. Their emissivities are in the ratio $16 : 1$. At $\text{T}_1 = x\text{T}_2$, they radiate the same amount of heat per unit area per unit time. The value of $x$ is

11.A light ray passes from air (refractive index \( n_1 = 1 \)) into water (refractive index \( n_2 = 1.33 \)). If the angle of incidence is \( 30^\circ \), what is the angle of refraction in the water?

12.The instantaneous value of current in an a.c. circuit is \(I = 3 \sin (50\pi t + \frac{\pi}{4})\text{A}\). The current will be maximum for the first time at

13.In biprism experiment the maximum intensity is ' \(I_0\) '. If the path difference between the two interfering waves is ' \(\lambda/4\) ' then intensity at the point on the screen is \(\left[ \sin 45^\circ = \cos 45^\circ = \frac{1}{\sqrt{2}} \right]\)

14.A body when projected at an angle \( \theta \) with the horizontal reaches a maximum height \( H \). The time of flight of the body will be ( \( g \) = acceleration due to gravity)

15.The fundamental frequency of sonometer wire is 'n'. If the tension and length are increased 3 times and diameter is increased twice, the new frequency will be

Comments

SUBSCRIBE TO OUR NEWS LETTER

1.
When source of sound moves towards a stationary observer, the apparent frequency heard by him

2.
A radioactive element $^{242}_{92}X$ emits two $\alpha$ particles, one electron and two positrons. The product nucleus is represented by $^{234}_P Y$. The value of P is

3.
In a Young's double-slit experiment, the distance between the slits is \( 0.2 \, \text{mm} \) and the distance between the screen and the slits is \( 2 \, \text{m} \). If the wavelength of the light used is \( 600 \, \text{nm} \), calculate the distance between the two adjacent bright fringes.

4.
What is the frequency of a wave with a wavelength of \( 2 \, \text{m} \) and a velocity of \( 4 \, \text{m/s} \)?

5.
At any time \( t \), the co-ordinates of moving particle are \( x = at^2 \) and \( y = bt^2 \). The speed of the particle is

6.
A light wave of wavelength ‘λ’ is incident on a slit of width ‘d’. The resulting diffraction pattern is observed on a screen at a distance ‘D’.If linear width of the principal maximum is equal to the width of the slit, then the distance D is

7.
The fundamental frequency of a closed pipe of length \(L\) is equal to the second overtone of a pipe open at both the ends of length (XL). The value of X is (Neglect end correction)

9.
According to corpuscular theory of light, Which is NOT the property of light?

11.
A light ray passes from air (refractive index \( n_1 = 1 \)) into water (refractive index \( n_2 = 1.33 \)). If the angle of incidence is \( 30^\circ \), what is the angle of refraction in the water?

12.
The instantaneous value of current in an a.c. circuit is \(I = 3 \sin (50\pi t + \frac{\pi}{4})\text{A}\). The current will be maximum for the first time at

13.
In biprism experiment the maximum intensity is ' \(I_0\) '. If the path difference between the two interfering waves is ' \(\lambda/4\) ' then intensity at the point on the screen is \(\left[ \sin 45^\circ = \cos 45^\circ = \frac{1}{\sqrt{2}} \right]\)

14.
A body when projected at an angle \( \theta \) with the horizontal reaches a maximum height \( H \). The time of flight of the body will be ( \( g \) = acceleration due to gravity)

15.
The fundamental frequency of sonometer wire is 'n'. If the tension and length are increased 3 times and diameter is increased twice, the new frequency will be