Target Exam

CUET

Subject

Physics

Chapter

Wave Optics

Question:

Daily life phenomena based on scattering of light are

(A) Blue colour of sky
(B) Clouds appearing white
(C) Twinkling of stars
(D) Danger signals being red

Choose the correct answer from the options given below:

Options:

(A), (B) and (D) only

(A), (B) and (C) only

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

(B), (C) and (D) only

Correct Answer:

(A), (B) and (D) only

Explanation:

The correct answer is Option (1) → (A), (B) and (D) only

(A) Blue colour of sky → due to scattering of light ✔

(B) Clouds appearing white → due to scattering of light ✔

(C) Twinkling of stars → due to atmospheric refraction ✘

(D) Danger signals being red → due to least scattering of red light (large wavelength) ✔

Correct Answer: (A), (B) and (D)