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.The angle of refraction in a glass block of refractive index 1.5 is $19^{\circ}$. Calculate the angle of incidence.
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2.Which of the following correctly describes two characteristics of the virtual image formed by a convex lens?
- A.Erect and magnified
- B.Inverted and diminished
- C.Erect and diminished
- D.Inverted and magnified
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3.Name two electromagnetic waves with frequencies higher than that of violet light and state one use of each.
- A.Infrared: Night vision; Microwaves: Cooking food.
- B.Ultraviolet: Water purification; X-rays: Detecting bone fractures.
- C.Radio waves: Communication; Gamma rays: Cancer treatment.
- D.Visible light: Photography; Ultraviolet: Sterilizing medical tools.
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4.A radiation P is focused by a proper device on the bulb of a thermometer. Mercury in the thermometer shows a rapid increase. The radiation P is
- A.infrared radiation
- B.visible light
- C.ultraviolet radiation
- D.X-rays
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5.Why is a quartz prism used instead of a glass prism to obtain the spectrum of ultraviolet radiations?
- A.Quartz has a higher refractive index than glass, allowing better dispersion of ultraviolet light.
- B.Glass absorbs ultraviolet radiations, whereas quartz does not, making quartz necessary for the spectrum.
- C.Quartz is cheaper and more readily available than glass for optical experiments.
- D.Glass reflects ultraviolet radiations, while quartz transmits them without dispersion.
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