Question

Assertion : Wavefronts obtained from light emitted by a point source in an isotropic medium are always spherical.
Reason : Speed of light in isotropic medium is constant.

• A. If both assertion and reason are true and reason is the correct explanation of assertion
• B. If both assertion and reason are true but reason is not the correct explanation of assertion
• C. If assertion is true but reason is false
• D. If both assertion and reason are false

Answer 1

Answer: (A)

When the speed of light is independent of direction, the secondary waves are spherical.