Question 74: Dual Nature of Matter and Radiation

Question

Which of the following phenomena cannot be explained by wave theory of light?

Accepted Answer

Solution Explanation
Among the four listed phenomena:
Reflection of light
Wave theory
(HuygensÃ¢ÂÂs principle, for example) adequately explains reflection.
Refraction of light
Wave theory
also explains refraction via the change of wave speed in different media.
Diffraction of light
Wave theory
(again, HuygensÃ¢ÂÂFresnel principle) explains the bending of waves around obstacles.
Compton effect
This involves
inelastic scattering of photons
by electrons (where the photon loses energy and is scattered with a longer wavelength).
Wave theory alone cannot explain
the discrete energy exchange and wavelength shift; it requires the
particle (photon)
concept from quantum theory.
Hence, the phenomenon
not
explained by the (classical) wave theory is the
Compton effect
.
Answer:
(D) Compton effect.

Answer

Refraction of light

Answer

Reflection of light

Answer

Diffraction of light

Answer

Compton effect

Dual Nature of Matter and Radiation

Which of the following phenomena cannot be explained by wave theory of light?

Choose the correct answer: