Physics-Huygens Principle

NEET Physics Huygens Principle MCQ Question

Type: MCQ-numerical-Medium-Class 12

A point source emits spherical wavefronts in a medium where the speed of the wave is 300 m/s. If the radius of the wavefront at time t = 2 seconds is measured, what will be the radius?

A

600 m

B

300 m

C

150 m

D

900 m

Correct Answer

Option A

Detailed Explanation

According to Huygens Principle, the wavefront moves outward with a speed v. The radius of the wavefront can be calculated using the formula r = vt. Given v = 300 m/s and t = 2 seconds, r = 300 * 2 = 600 m.

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