Q.

Which of the following statements is incorrect?

Moderate

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Particle nature of radiations can be experimentally demonstrated by Compton effect

Wave nature of electrons can be experimentally demonstrated by diffraction experiment

The value of Planck's constant, h is 6.62 × 10^–34J.s

Intensity of light is directly proportional to its frequency.

answer is D.

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Detailed Solution

A change in frequency means the energy of photons is changing but not the brightness. So, the frequency has no effect on the intensity of light.