The phenomenon of splitting of white light into its constituent colours is called MCQ with Answer and Explanation

The phenomenon of splitting of white light into its constituent colours is called
A. Scattering
B. Refraction
C. Polarisation
D. Dispersion
Answer: Option D
Solution (By JKExamLibrary)
Dispersion happens because refractive index varies with wavelength. Prism, rainbow. Scattering is Tyndall effect (blue sky). Polarisation restricts vibrations.

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Practice More Physics Questions

Question #1
One micron is equal to
A. 10⁻¹⁰ m
B. 10⁻³ m
C. 10⁻⁹ m
D. 10⁻⁶ m

Correct Answer: Option D


Explanation:
Micron or micrometer = 10⁻⁶ m.

This question belongs to: Science Physics
Question #2
The SI unit of momentum is
A. N/m
B. N s
C. kg m/s
D. J s

Correct Answer: Option C


Explanation:
kg m/s, same as impulse unit N s.

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Question #3
The pressure at the bottom of a tank of water of depth 10 m (ρ=1000, g=10) is
A. 1000 Pa
B. 100 Pa
C. 100000 Pa
D. 10 Pa

Correct Answer: Option C


Explanation:
P = ρgh = 1000×10×10 = 100,000 Pa = 100 kPa.

This question belongs to: Science Physics