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.In the given figure, OC = f (focal length of the lens). If rays are drawn from the linear object OO₁, how will the image be formed by the lens?
- A.Real, inverted, and magnified image at 2F.
- B.Virtual image formed at infinity with parallel emergent rays.
- C.Real, erect, and diminished image between F and the lens.
- D.No image formed as rays diverge after refraction.
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2.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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3.The diagram below shows a light source P embedded in a rectangular glass block ABCD of critical angle 42°. Which of the following correctly completes the path of the ray PQ till it emerges out of the block?
- A.The ray refracts at 42° and emerges parallel to the surface.
- B.The ray undergoes total internal reflection and emerges after refraction at the opposite face.
- C.The ray reflects back into the block at 90° to the surface.
- D.The ray passes straight through the block without deviation.
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4.A ray of light passes through an equilateral prism. Write the relation for the angle of deviation (δ) in terms of the angle of incidence (i₁), angle of emergence (i₂), and angle of prism (A). Which of the following correctly expresses δ?
- A.δ = (i₁ + i₂) - A
- B.δ = (i₁ + i₂) + A
- C.δ = A - (i₁ + i₂)
- D.δ = i₁ + i₂ + 2A
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5.A ray incident on the lens from the object, gets ... through the lens obeying the laws of refraction.
- a.absorbed
- b.reflected
- c.refracted
- d.none of these
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