According to Huygen's wave theory of light, which one of the following statements is not correct? (a) Different colours of light are due to different wavelengths of waves. (b) Different colours of light are due to different sizes of the corpuscles. (c) Speed of light in denser medium is less than that in rarer medium. (d) It can explain laws of reflection and refraction.

Answer: (b). In wave theory, colour depends on wavelength, so (a) is correct. Wave theory predicts vdenser < vrarer and explains reflection and refraction, so (c) and (d) are correct. Colour due to size of corpuscles belongs to Newton's corpuscular theory, not Huygens' theory. So the answer is (b).

According to Huygen's wave theory of light, which one of the… | MHT CET 2025 (21 Apr, Shift 2)

Q7MHT CET 2025 · 21 APR · SHIFT 2Easy

Wave Theory, Wavefronts & Doppler Effect

According to Huygen's wave theory of light, which one of the following statements is not correct?

Show answer and solution

Answer: (b)

In wave theory, colour depends on wavelength, so (a) is correct.
Wave theory predicts $v_{denser} < v_{rarer}$ and explains reflection and refraction, so (c) and (d) are correct.
Colour due to size of corpuscles belongs to Newton's corpuscular theory, not Huygens' theory.
So the answer is (b).

Report a mistake

Wave Theory, Wavefronts & Doppler Effect question from MHT CET 2025 (21 Apr, Shift 2)

More questions on Wave Theory, Wavefronts & Doppler Effect