Explore topic-wise MCQs in Physics.

This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Physics knowledge and support exam preparation. Choose a topic below to get started.

1.

Identify the principle behind the sparkling of diamonds.

A. Total internal reflection
B. Refraction
C. Reflection
D. Optical activity
Answer» B. Refraction
Discussion
2.

X is an optical illusion observed in deserts or over hot extended surfaces like a coal-tarred road, due to which a traveler sees a shimmering pond of water some distance ahead of him and in which the surrounding objects like trees appear inverted. Identify X.

A. Mileage
B. Mirage
C. Optical activity
D. Total internal reflection
Answer» C. Optical activity
Discussion
3.

The secondary rainbow is brighter than the primary rainbow.

A. True
B. False
Answer» C.
Discussion
4.

Which of the following color is the ocean?

A. Black
B. Orange
C. Blue
D. Red
Answer» D. Red
Discussion
5.

Which of the following is a necessary condition for total internal reflection?

A. The angle of incidence in the denser medium must be greater than the critical angle for the two media
B. The angle of incidence in the rarer medium must be greater than the critical angle for the two media
C. The angle of incidence in the denser medium must be lesser than the critical angle for the two media
D. The angle of reflection in the denser medium must be greater than the critical angle for the two media
Answer» B. The angle of incidence in the rarer medium must be greater than the critical angle for the two media
Discussion
6.

Why is the sequence of colors in the secondary rainbow reverse of that in the primary rainbow?

A. Refraction of light
B. Two internal reflection
C. Reflection of light
D. Dispersion
Answer» C. Reflection of light
Discussion
7.

What causes haloes (rings) around the sun or the moon?

A. Total internal reflection
B. Refraction of light
C. Reflection of light
D. Dispersion
Answer» D. Dispersion
Discussion