Question

Statement I: A ray is incident from outside on a glass sphere surrounded by air as shown in Figure. This ray may suffer total internal reflection at the second interface.

Statement II: For a ray going from a denser to rarer medium, the ray may suffer total internal reflection.
A. If both the assertion and reason are true and reason explains the assertion.
B. If both the assertion and reason are true but reason does not explain the assertion.
C. If assertion is true but reason is false.
D. If assertion is false but reason is true.

Answer 1

Correct Answer - B
When a ray of light enters a spherical glass sphere, it is first refracted at first interface and then it strikes the inner surface of sphere ( second interface ) and get totally internally relected if the angle between the refracted ray and normal to the drop surface is greater than the critical angle `(42^(@)`, in this case ).