Light – Reflection and Refraction Practice Questions
Class 10 · Science · 2474 free MCQs with instant results and detailed explanations.
2474
Total
915
Easy
1196
Medium
363
Hard
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Topics in Light – Reflection and Refraction
Refraction
588
Spherical Mirrors
531
Laws of Reflection
741
Lenses
614
Sample Questions from Light – Reflection and Refraction
Here are 10 sample questions. Start a quiz to get randomized questions with scoring.
Q1
Easy
What is the angle of incidence if the angle of reflection is 30 degrees?
A.
30 degrees
B.
60 degrees
C.
90 degrees
D.
45 degrees
Show Answer & Explanation
Correct Answer: A
According to the law of reflection, the angle of incidence is equal to the angle of reflection.
Q2
Easy
Which of the following surfaces is best for reflection of light?
A.
Rough surface
B.
Smooth surface
C.
Translucent surface
D.
Opaque surface
Show Answer & Explanation
Correct Answer: B
A smooth surface reflects light in a uniform direction, leading to clear images.
Q3
Easy
What is the law of reflection?
A.
Angle of incidence = Angle of refraction
B.
Angle of incidence + Angle of reflection = 90 degrees
C.
Angle of incidence = Angle of reflection
D.
Light travels in curved paths
Show Answer & Explanation
Correct Answer: C
The law of reflection states that the angle of incidence is equal to the angle of reflection.
Q4
Medium
What is the angle of incidence when a ray of light strikes a plane mirror at an angle of 30 degrees?
A.
30 degrees
B.
60 degrees
C.
45 degrees
D.
15 degrees
Show Answer & Explanation
Correct Answer: A
The angle of incidence is measured with respect to the normal, so it remains 30 degrees as given.
Q5
Medium
Which of the following statements is true regarding the laws of reflection?
A.
The incident ray, reflected ray, and normal all lie in the same plane.
B.
The angle of reflection is always greater than the angle of incidence.
C.
The incident ray and reflected ray lie on opposite sides of the normal.
D.
The angle of incidence is always equal to the angle of refraction.
Show Answer & Explanation
Correct Answer: A
According to the first law of reflection, the incident ray, reflected ray, and the normal to the surface at the point of incidence all lie in the same plane.
Q6
Medium
If a ray of light strikes a plane mirror at an angle of 50 degrees, what is the angle of reflection?
A.
50 degrees
B.
40 degrees
C.
60 degrees
D.
70 degrees
Show Answer & Explanation
Correct Answer: A
According to the second law of reflection, the angle of reflection is equal to the angle of incidence, which is 50 degrees here.
Q7
Medium
What happens to the path of a light ray when it strikes a rough surface?
A.
It reflects uniformly.
B.
It refracts.
C.
It scatters in many directions.
D.
It passes through.
Show Answer & Explanation
Correct Answer: C
When light hits a rough surface, it scatters in many directions rather than reflecting uniformly.
Q8
Hard
A ray of light strikes a mirror at an angle of 50 degrees to the normal. What will be the angle of reflection?
A.
50 degrees
B.
40 degrees
C.
70 degrees
D.
10 degrees
Show Answer & Explanation
Correct Answer: A
The angle of reflection equals the angle of incidence based on the law of reflection.
Q9
Hard
When light reflects off a rough surface, what is the nature of the reflection?
A.
Specular reflection
B.
Diffused reflection
C.
Total internal reflection
D.
Partial reflection
Show Answer & Explanation
Correct Answer: B
Rough surfaces cause diffused reflection, scattering light in many directions.
Q10
Hard
What happens to the angle of incidence if the angle of reflection is 75 degrees?
A.
It becomes 15 degrees
B.
It remains 75 degrees
C.
It becomes 90 degrees
D.
It becomes 45 degrees
Show Answer & Explanation
Correct Answer: B
The angle of incidence is always equal to the angle of reflection according to the law.
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Light – Reflection and Refraction — Class 10 Science Practice Questions Online
This page contains 2474 practice MCQs for the chapter Light – Reflection and Refraction in Class 10 Science. The questions are organized by difficulty — 915 easy, 1196 medium, 363 hard — so you can choose the right level for your preparation.
Every question includes a detailed explanation to help you understand the concept, not just memorize answers. Take a timed quiz to simulate exam conditions, or practice at your own pace with no time limit. This chapter covers 4 topics, giving you comprehensive coverage of the entire chapter.