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NEETPhysicsDual Nature of Matter

Assertion (A) Electromagnetic waves exert pressure, called radiation pressure. Reason (R) This is because they carry energy.

Options

  1. ABoth A and R are true and R is a correct explanation for A .
  2. BBoth A and R are true but R is not a correct explanation for A .
  3. CA is true but R is false.
  4. DA is false but R is true.

Correct answer

B. Both A and R are true but R is not a correct explanation for A .

Step-by-step solution

Electromagnetic waves (EMW) exerts pressure, called radiation pressure. In perfect reflecting waves, p=2 I / C In perfect absorbing waves, p=I / C So, Assertion is true. EMW exert pressure on the surface because they carry energy also. Therefore reason is also true. But, Reason (R) is not a correct explanation of Assertion (A).

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