NCERT Solutions for class 11 Physics Chapter 14: Oscillations

NCERT Solutions for Class 11 Physics Chapter 14: Oscillations deals with concepts of oscillatory motion. Oscillation is a time-dependent measure of some recurrent variation. Oscillation can be referred to as a body that is in constant motion also known as oscillatory motion when the body moves in a to and fro motion around the same point at a uniform interval of time.

Class 11 Physics Chapter 14 Oscillations belongs to Unit 10 Oscillations and Waves which has a weightage of 10 marks in the CBSE Class 11 Physics Examination. The chapter deals with simple harmonic motion and uniform circular motion.

Download PDF: NCERT Solutions for Class 11 Physics Chapter 14

NCERT Solutions for Class 11 Physics Chapter 14

Class 11 Physics NCERT Solutions for Chapter 14 Oscillations are as given below –

Class 11 Physics Chapter 14 – Concepts Covered

Oscillations are regular variations in magnitude or position about a central point, especially of a voltage or an electric current.

It is the back and forth movement in a regular rhythm. For example, the pendulum of a clock, in a swing, etc.

Periodic Motion is a periodically repeating motion that is a function of time.

- Time Period refers to the period of time after which the motion repeats itself.

- Frequency is the number of repetitions per unit of time (v = 1/T).

Oscillatory Motions is the to and fro, and then back motion. It can be seen in both non-periodic and periodic motion.

Oscillatory motions operate upon a restoring force or torque that directs its motion towards the equilibrium position.

Simple Harmonic Motions are oscillations where the restoring force is directly proportional to the displacement from the mean position, therefore creating a fixed set of motion.

Three primary conditions that are required for a simple harmonic motion are-

A position where there is a stable equilibrium that results from a zero potential energy.
The energy is conserved, i.e., ther is no dissipation of energy.
The acceleration is proportional to the displacement.

A simple pendulum is a common example of bodies showing simple harmonic motion. An ideal pendulum consists of a heavy point mass body that is suspended by a weightless inextensible and perfectly flexible string from rigid support about which the body is free to oscillate.

The time period of a simple pendulum of length ‘l’ is –

\(T = 2 \pi \sqrt {l \over g}\)

Class 11 Physics Chapter 14 Related Guides –

Free, Forced, and Damped Oscillations	Transverse and longitudinal waves	Beats
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Unit of Wavelength	Laplace Correction	Wave Motion

Class 11 Physics Study Guides:

Physics Constants	SI Units in Physics	Physics Study Notes
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Derivations in Physics	NCERT Solutions for Class 11 Physics	Class 11 Physics Notes

CBSE CLASS XII Related Questions

1.
Two small identical metallic balls having charges \( q \) and \( -2q \) are kept far at a separation \( r \). They are brought in contact and then separated at distance \( \frac{r}{2} \). Compared to the initial force \( F \), they will now:
- attract with a force \( \frac{F}{2} \)
- repel with a force \( \frac{F}{2} \)
- repel with a force \( F \)
- attract with a force \( F \)
View Solution
2.
Two parallel plate capacitors X and Y are connected in series to a 6 V battery. They have the same plate area and same plate separation but capacitor X has air between its plates, whereas capacitor Y contains a material of dielectric constant 4. Calculate the capacitances of X and Y, if the equivalent capacitance of the combination of X and Y is \( 4 \, \mu\text{F} \). Calculate the potential difference across the plates of X and Y.
View Solution
3.
A square loop of side 0.50 m is placed in a uniform magnetic field of 0.4 T perpendicular to the plane of the loop. The loop is rotated through an angle of 60° in 0.2 s. The value of emf induced in the loop will be:
- 5 V
- 3.5 V
- 2.5 V
- Zero V
View Solution
4.
The figure shows three point charges kept at the vertices of triangle ABC. The net electric field, due to this system of charges, at the midpoint M of base BC will be:
- \( \frac{q}{4 \pi \epsilon_0 l^2} \) pointing along MA
- \( \frac{q}{\pi \epsilon_0 l^2} \) pointing along AM
- \( \frac{q}{2 \pi \epsilon_0 l^2} \) pointing along AM
- Zero
View Solution
5.
Four independent waves are expressed as \[ (i)\; y_1=A_1\sin\omega t, \] \[ (ii)\; y_2=A_2\sin 2\omega t, \] \[ (iii)\; y_3=A_3\cos\omega t, \] \[ (iv)\; y_4=A_4\sin\left(\omega t+\frac{\pi}{3}\right) \] The interference between two of these waves is possible in
- (i) and (iii) only
- (iii) and (iv) only
- (i), (iii) and (iv) only
- All of them
View Solution
6.
Draw a circuit diagram of a full-wave rectifier using p-n junction diodes. Explain its working and show the input-output waveforms.
View Solution

View All

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NCERT Solutions for class 11 Physics Chapter 14: Oscillations

NCERT Solutions for Class 11 Physics Chapter 14

Class 11 Physics Chapter 14 – Concepts Covered

CBSE CLASS XII Related Questions

1.
Two small identical metallic balls having charges \( q \) and \( -2q \) are kept far at a separation \( r \). They are brought in contact and then separated at distance \( \frac{r}{2} \). Compared to the initial force \( F \), they will now:

3.
A square loop of side 0.50 m is placed in a uniform magnetic field of 0.4 T perpendicular to the plane of the loop. The loop is rotated through an angle of 60° in 0.2 s. The value of emf induced in the loop will be:

4.
The figure shows three point charges kept at the vertices of triangle ABC. The net electric field, due to this system of charges, at the midpoint M of base BC will be:

5.
Four independent waves are expressed as \[ (i)\; y_1=A_1\sin\omega t, \] \[ (ii)\; y_2=A_2\sin 2\omega t, \] \[ (iii)\; y_3=A_3\cos\omega t, \] \[ (iv)\; y_4=A_4\sin\left(\omega t+\frac{\pi}{3}\right) \] The interference between two of these waves is possible in

6.
Draw a circuit diagram of a full-wave rectifier using p-n junction diodes. Explain its working and show the input-output waveforms.

Similar Physics Concepts

Comments

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NCERT Solutions for class 11 Physics Chapter 14: Oscillations

NCERT Solutions for Class 11 Physics Chapter 14

Class 11 Physics Chapter 14 – Concepts Covered

CBSE CLASS XII Related Questions

1.Two small identical metallic balls having charges \( q \) and \( -2q \) are kept far at a separation \( r \). They are brought in contact and then separated at distance \( \frac{r}{2} \). Compared to the initial force \( F \), they will now:

3.A square loop of side 0.50 m is placed in a uniform magnetic field of 0.4 T perpendicular to the plane of the loop. The loop is rotated through an angle of 60° in 0.2 s. The value of emf induced in the loop will be:

4.The figure shows three point charges kept at the vertices of triangle ABC. The net electric field, due to this system of charges, at the midpoint M of base BC will be:

5.Four independent waves are expressed as \[ (i)\; y_1=A_1\sin\omega t, \] \[ (ii)\; y_2=A_2\sin 2\omega t, \] \[ (iii)\; y_3=A_3\cos\omega t, \] \[ (iv)\; y_4=A_4\sin\left(\omega t+\frac{\pi}{3}\right) \] The interference between two of these waves is possible in

6.Draw a circuit diagram of a full-wave rectifier using p-n junction diodes. Explain its working and show the input-output waveforms.

Similar Physics Concepts

Comments

SUBSCRIBE TO OUR NEWS LETTER

1.
Two small identical metallic balls having charges \( q \) and \( -2q \) are kept far at a separation \( r \). They are brought in contact and then separated at distance \( \frac{r}{2} \). Compared to the initial force \( F \), they will now:

3.
A square loop of side 0.50 m is placed in a uniform magnetic field of 0.4 T perpendicular to the plane of the loop. The loop is rotated through an angle of 60° in 0.2 s. The value of emf induced in the loop will be:

4.
The figure shows three point charges kept at the vertices of triangle ABC. The net electric field, due to this system of charges, at the midpoint M of base BC will be:

5.
Four independent waves are expressed as \[ (i)\; y_1=A_1\sin\omega t, \] \[ (ii)\; y_2=A_2\sin 2\omega t, \] \[ (iii)\; y_3=A_3\cos\omega t, \] \[ (iv)\; y_4=A_4\sin\left(\omega t+\frac{\pi}{3}\right) \] The interference between two of these waves is possible in

6.
Draw a circuit diagram of a full-wave rectifier using p-n junction diodes. Explain its working and show the input-output waveforms.