
Establish the relation between the focal length and radius of curvature

Important Questions on Ray Optics and Optical Instruments
Draw a ray diagram to show the correction of a myopic eye.The near point of the person with the defective eye is from the eye. Find the power of lens required to see clearly at

For refraction at a convex spherical surface of radius of curvature from a medium of refractive index to medium of refractive index , establish the relation:
.
What will be behaver of a convex lens of the refractive index when it is immersed in a liquid of refractive index ?


A concave mirror of focal length cm produces times magnifies erect image of an object. Find the position of object.

In a combination of lenses in contact, the power of first lens is and the focal length of second lens is. Calculate the power or focal length of the lens combination.


You know the phenomenon of the scattering of light by atmospheric particles. Write a few lines about the blue colour of the sky and reddish colour of the sky in the morning as well as in the evening.

In a prism and , when the prism is at the position of minimum deviation . Show that the refractive index of the material of the prism is:
Also derive the expression for for small angled prism.
