Target Exam

CUET

Subject

Physics

Chapter

Wave Optics

Question:

Consider the following statements

(A) Corpuscular model predicted that if the ray of light bends towards the normal after refraction then the speed of light would be greater in the second medium
(B) In optical fibre, the refractive index of the core is kept higher than cladding.
(C) Diffraction due to clouds is efficient in equal measures for all wavelengths
(D) Light travels faster in glass than in air.
(E) When light reflects from the air glass plate interface, the reflected wave suffers a phase change of π.

Choose the correct answer from the options given below:

Options:

(B), (C) and (D) Only

(A), (B) and (E) Only

(C), (D) and (E) Only

(A), (B), (C) and (D) Only

Correct Answer:

(A), (B) and (E) Only

Explanation:

The correct answer is Option (2) → (A), (B) and (E) Only

(A) Yes, the corpuscular model of light predicted that if a ray of light bends towards the normal after refraction, then the speed of light would be greater in second medium.

(B) In optical fibers, the core has a higher refractive index then the cladding, which ensures total internal reflection and confinement of light.

(E) When light reflects from a denser medium (glass) from a less denser medium (air), there is a phase change of $π$ (180° phase shift).