List of top Physics Questions on Ray optics and optical instruments asked in MHT CET

A convex lens of focal length \( F \) produces a real image \( n \) times the size of the object. The image distance is

A ray of light is incident at an angle of incidence \( i \) on one surface of a thin prism of small angle \( A \). The ray emerges normally from the opposite surface. If the refractive index of the material of the prism is \( \mu \), the angle of incidence \( i \) is nearly equal to

The magnifying power of an astronomical telescope is \( m \). If the focal length of the eyepiece is doubled, the magnifying power will become

A ray of light is incident normally on a glass slab of thickness $5\, cm$ and refractive index 1.6. The time taken to travel by a ray from source to surface of slab is same as to travel through glass slab. The distance of source from the surface is

The angle made by incident ray of light with the reflecting surface is called

A transparent sphere of refractive index ' \(\mu\) ' and radius of curvature ' \(R\) ' is kept in air. A point object is placed at a distance ' \(d\) ' from the surface of the sphere so that the real image is formed at the same distance ' \(d\) ' from exactly opposite side of the sphere. The distance ' \(d\) ' is

The angle of deviation produced by a thin prism when placed in air is $\delta_1$ and that when immersed in water is $\delta_2$. The refractive indices of glass and water are $\frac{3}{2}$ and $\frac{4}{3}$ respectively. The ratio $\delta_1 : \delta_2$ is

A combination of two thin lenses in contact have power $+10$D. The power reduces to $+6$D when the lenses are $0.25$ m apart. The power of individual lenses is

When light wave suffers reflection at the interface between air and glass, the change of phase of reflected wave is equal to

If angle of incidence is twice the angle of refraction in a medium of refractive index $ \mu $ , then angle of incidence is