Question

The ray showing the correct path of the ray after passing through the lens is:

• A. II and III only
• B. I and II only
• C. I, II and III
• D. I, II and IV

Answer 1

The correct option is C I, II and III

• Any ray parallel to the principal axis passes through the principal focus on the other side in case of a convex lens and appears to diverge from the principal focus located on the same side of the lens in case of a concave lens.
• Any ray of light passing through principal focus (in case of convex lens) or appear to meet at the principal focus (in case of concave lens) will emerge parallel to the principal axis.
• A ray of light passing through the optical centre of a lens will emerge without any deviation.