ICSE Class 10 Light — Mock Test (2027)
Free online mock test for Light (ICSE Class 10 Physics) — 20 competency-based questions based on the latest CISCE 2027 syllabus, with instant marking. Try the samples below, then take the full test free.
What to expect: This mock test covers key concepts from the Light chapter — including application-based and competency-focused questions aligned with how ICSE actually sets the paper.
Tip: Attempt without notes first to identify gaps, then review explanations for any wrong answers. Retake after a few days for best retention.
Sample questions
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1.When a ray of light enters into another optical medium, its wavelength and velocity change. The material in which wavelength and velocity decrease maximum, when the ray is travelling through air is:
- A.glass
- B.water
- C.alcohol
- D.diamond
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2.What type of lens is used in the case below?
- a.reflecting lens
- b.translucent lens
- c.converging lens
- d.diverging lens
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3.A light ray of yellow colour is incident on an equilateral glass prism at an angle of incidence equal to $48^\circ$ and suffers minimum deviation by an angle of $36^\circ$. (i) What will be the angle of emergence? (ii) If the angle of incidence is changed to (a) $30^\circ$, (b) $60^\circ$, state in each case whether the angle of deviation will be equal to, less than or more than $36^\circ$? Ans. (i) ___ (ii) (a) ___ (b) ___
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4.Distorted image of a face of a person sitting in front of a camp fire is because of the phenomenon of
- A.diffusion
- B.total internal reflection
- C.refraction
- D.winds blowing
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5.In the position of minimum deviation for an equilateral prism, how is the angle of emergence related to the angle of incidence? Refer to the labelled diagram below to identify the correct relationship.
- A.The angle of emergence is twice the angle of incidence.
- B.The angle of emergence is equal to the angle of incidence.
- C.The angle of emergence is half the angle of incidence.
- D.The angle of emergence is independent of the angle of incidence.
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