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.An electromagnetic wave has a frequency of 500 MHz and a wavelength of 60 cm. (a) Calculate the speed of the wave. (b) Name the medium through which it is travelling.
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2.Two lenses of power $-3.5\mathrm{D}$ and $+1.0\mathrm{D}$ are placed in contact with each other. What is the focal length of this combination?
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3.The wavelength range of white light is
- A.$4000\mathrm{nm}$ to $8000\mathrm{nm}$
- B.$40\mathrm{nm}$ to $80\mathrm{nm}$
- C.$400\mathrm{nm}$ to $800\mathrm{nm}$
- D.$4\mathrm{nm}$ to $8\mathrm{nm}$
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4.A concave mirror and a convex lens are immersed in water. What changes, if any, occur in their focal lengths?
- A.Both focal lengths remain unchanged.
- B.Concave mirror's focal length remains unchanged; convex lens's focal length changes.
- C.Concave mirror's focal length changes; convex lens's focal length remains unchanged.
- D.Both focal lengths increase equally.
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5.Ranbir claims to have obtained an image twice the size of the object with a concave lens. Is his claim correct?
- A.Yes, a concave lens can form a magnified image if the object is close.
- B.No, a concave lens always forms a diminished image of the object.
- C.Yes, but only if the object is placed beyond the focus of the lens.
- D.No, a concave lens forms an image of the same size as the object.
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