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.What is the primary function of a periscope, and which optical components does it use to achieve this?
- A.To magnify distant objects using convex lenses
- B.To view concealed objects using right-angled prisms
- C.To split light into colors using a prism
- D.To reflect light using plane mirrors only
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2.A water pond appears to be 2·7 m deep. If the refractive index of water is 4/3, find the actual depth of the pond.
- A.2.025 m
- B.3.6 m
- C.2.7 m
- D.5.4 m
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3.The diagram shows the path of a blue ray through a prism. What is the critical angle of the prism's material for blue color?
- A.30°
- B.43°
- C.60°
- D.90°
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4.What characteristic property of light is responsible for the blue colour of the sky?
- A.Refraction of light through the atmosphere
- B.Scattering of light by atmospheric particles
- C.Dispersion of light into its component colours
- D.Absorption of all colours except blue by the atmosphere
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5.What is the wavelength range of electromagnetic waves visible to the human eye?
- A.400 nm to 700 nm
- B.780 nm to 400 nm
- C.300 nm to 800 nm
- D.1000 nm to 500 nm
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