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KCET2010PhysicsWaves and Sound

In a given direction, the intensities of the scattered light by a scattering substance for two beams of light are in the ratio of 256: 81 . The ratio of the frequency of the first beam to the frequency of the second beam is

Options

  1. A64: 127
  2. B1: 2
  3. C64: 27
  4. DNone of these

Correct answer

D. None of these

Step-by-step solution

According to Rayleigh scattering formula Intensity of scattered light I 1 ( )⁴ f ⁴ aligned f₁ f₂ &= [ I₁ I₂ ]^ 1 / 4 &= [ 256 81 ]^ 1 / 4 &= 4 3 aligned Hence, option (d) is correct.

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