Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Wave Optics

Question:

Assertion : In a moving car, the signals are sometimes interrupted.

Reason : The car is in motion so the wavefront is spherical.

Options:

Both (A) and (R) are true and (R) is the correct explanation of (A).

Both (A) and (R) are true but(R) is NOT the correct explanation of (A).

(A) is true but (R) is false.

Both (A) and (R) are false.

Correct Answer:

(A) is true but (R) is false.

Explanation:
While we are in a moving car, there are periodic interuptions in a radio signal that we hear. It occurs an account of interfering radio waves. This is a common form of interference, called multipath interference between a radio wave and its reflection.