Question

The figure shows a ray of light incident on a convex lens, parallel to its principal axis. Obviously the emergent ray passes through the principal focus F. Which of the following statements is correct?

• A. The ray bends downwards only once inside the lens
• B. The ray bends downwards at each surface
• C. The ray bends downwards at the first surface and upwards at the second surface
• D. The ray bends upwards at the first surface and downwards at the second surface

Answer 1

The correct option is B The ray bends downwards at each surface


Hence from the ray diagram we can observe that ray bends downward at both the surface.