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Class 10 Physics · Chapter 5 · Test 1

Test 1: Reflection and Refraction of Light

MCQs

30 questions · 25 min · 30 marks

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Sample questions

The first 5 of 30. Try each one, then tap to see the answer.

Question 1
Light is a form of energy that travels in the form of:
- Aparticles only
- Bwaves
- Csound
- Dheat only
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Answer: B
Light is a form of energy that travels in the form of waves and allows us to see the world around us.
Question 2
Reflection of light takes place when light:
- Apasses through a surface
- Bis absorbed by a surface
- Chits a surface and bounces back instead of passing through it
- Dchanges its speed inside a medium
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Answer: C
Reflection occurs when light hits a surface and bounces back instead of passing through it.
Question 3
A normal is a line drawn:
- Aparallel to the surface
- Bperpendicular to the surface at the point of reflection
- Calong the reflected ray
- Dalong the incident ray
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Answer: B
The normal is a line drawn perpendicular to the surface at the point of reflection.
Question 4
The angle of incidence is the angle between the incident ray and the:
- Amirror surface
- Breflected ray
- Cnormal
- Dpoint of incidence
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Answer: C
Angles of incidence (i) and reflection (r) are both measured from the normal (Fig. 14.1).
Question 5
According to the second law of reflection:
- Ai = 2r
- Bi > r
- Ci < r
- Di = r
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Answer: D
The angle of incidence is always equal to the angle of reflection (angle i = angle r).

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