In Huygens' eyepiece, condition for achromatism is satisfied. Explain.

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Huygens' eyepiece is an optical device that is used to observe distant objects by magnifying their image. It is a compound lens system consisting of two lenses - the eyepiece lens and the field lens. Huygens' eyepiece is also known as a Ramsden eyepiece.

Achromatism refers to the property of a lens system to produce an image that is free from chromatic aberration.
Chromatic aberration is an optical defect that causes different colors of light to focus at different points, resulting in blurred and distorted images.
Huygens' eyepiece satisfies the condition for achromatism because the two lenses are made from different types of glass, each with a different refractive index and dispersive power.
The eyepiece lens is made from a crown glass with a lower refractive index, while the field lens is made from a flint glass with a higher refractive index.
The difference in refractive indices of the two glasses helps to cancel out the chromatic aberration, resulting in a clear and sharp image.
In addition, Huygens' eyepiece also uses a small aperture to limit the amount of light that enters the system, which further reduces the effect of chromatic aberration.

Overall, the achromatic property of Huygens' eyepiece makes it a popular choice for astronomical observations, as it provides a clear and detailed image of celestial objects.

Huygens' eyepiece is an optical device

Huygens' Eyepiece as Optical Device

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In Huygens' eyepiece, condition for achromatism is satisfied. Explain.

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3.
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In Huygens' eyepiece, condition for achromatism is satisfied. Explain.

CBSE CLASS XII Related Questions

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 $60^\circ$ in 0.2 s. The value of emf induced in the loop will be:

4.Find the ratio $\dfrac{\lambda_\alpha}{\lambda_p}$ of the de Broglie wavelength $\lambda_\alpha$ associated with an alpha particle to the de Broglie wavelength $\lambda_p$ associated with a proton if both are moving with the same velocity.

6.Draw the plot of potential energy of a pair of nucleons as a function of their separation. Write two important conclusions that can be drawn from this plot.

Similar Physics Concepts

Comments

SUBSCRIBE TO OUR NEWS LETTER

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 $60^\circ$ in 0.2 s. The value of emf induced in the loop will be:

4.
Find the ratio $\dfrac{\lambda_\alpha}{\lambda_p}$ of the de Broglie wavelength $\lambda_\alpha$ associated with an alpha particle to the de Broglie wavelength $\lambda_p$ associated with a proton if both are moving with the same velocity.

6.
Draw the plot of potential energy of a pair of nucleons as a function of their separation. Write two important conclusions that can be drawn from this plot.