The radiation pressure exerted by a 450 W light source on a perfectly reflecting surface placed at 2 m away from it, is :
Held on 3 Apr 2025 · Verified 6 Jul 2026.
1.5×10−8 Pascals
0
6×10−8 Pascals
3×10−8 Pascals
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Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): The electromagnetic wave exerts pressure on the surface on which they are allowed to fall. Reason (R): There is no mass associated with the electromagnetic waves. In the light of the above statements, choose the correct answer from the options given below :
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