JEE PHYSICS MCQ: WAVE OPTICS

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By Huygen’s wave theory of light, we cannot explain the phenomenon of

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Correct option: C

Photoelectric effect

Option C (Photoelectric effect) is correct because Huygen's wave theory cannot explain the particle nature of light, which is fundamental to the photoelectric effect.

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Which of the following properties of electromagnetic waves does not support particle nature of radiation (electromagnetic wave)? Spherical wavefronts, emanating from a point source, strike a plane reflecting surface. What will happen to these wave fronts, immediately after reflection? An astronomical telescope is able to resolve two stars at an angular separation of

10^{-3}

degree. If wavelength of light used is

500 {~nm}

, then the diameter of the objective of the telescope is An interference pattern was made by using red light. If the red light changes with blue light, the fringes will become H-polaroid is prepared by Specific rotation of sugar solution is

0.01\;SI

units.

200\;kg{m^{ - 3}}

of impure sugar solution is taken in a polarimeter tube of length

0.25\;m

and an optical rotation of

0.4\;rad

is observed. The percentage of purity of sugar is the sample is