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.Violet has the smallest wavelength, but the colour of the sky is blue. Why?
- A.Our eyes are less sensitive to violet colour.
- B.Most of the violet rays are absorbed by the atmosphere.
- C.Both (a) and (b)
- D.Neither (a) nor (b)
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2.The power of a lens produced by it is the measure of
- A.convergence
- B.divergence
- C.deviation of ray of light
- D.all of the above
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3.When a lighted candle is held in front of a thick plane glass mirror, several images are visible, but the second image is the brightest. What causes this brightness?
- A.The second image is formed by light reflecting only once at the front glass surface.
- B.The second image results from strong reflection at the silvered back surface after refraction.
- C.The second image is brighter because the candle flame is directly aligned with it.
- D.The second image appears brighter due to the mirror's curvature, focusing light.
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4.How are ultraviolet radiations detected using silver-chloride solution?
- A.The solution turns violet and then dark brown or black beyond the violet end of the spectrum, indicating ultraviolet radiations.
- B.The solution remains colorless throughout the entire electromagnetic spectrum, including ultraviolet radiations.
- C.The solution turns red when exposed to ultraviolet radiations due to their lower chemical activity.
- D.The solution only changes color when exposed to visible light, not ultraviolet radiations.
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5.How can you determine whether a given piece of glass is a convex lens, concave lens, or a plane glass plate by observing the appearance of text through it?
- A.If the text appears magnified, it is a concave lens; if diminished, it is a convex lens; if same size, it is a plane glass plate.
- B.If the text appears magnified, it is a convex lens; if diminished, it is a concave lens; if same size, it is a plane glass plate.
- C.If the text appears the same size, it is a convex lens; if magnified, it is a plane glass plate; if diminished, it is a concave lens.
- D.If the text appears diminished, it is a convex lens; if magnified, it is a plane glass plate; if same size, it is a concave lens.
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