ICSE Class 10 Modern Physics — Mock Test (2027)
Free online mock test for Modern Physics (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 Modern Physics 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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1.1. A radioactive substance emits radiations
- A.α, β and γ simultaneously
- B.in the order α, β and γ one by one
- C.X-rays and γ-rays
- D.α or β
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2.How much energy is released when a mass of 1 g is completely converted into energy? (Given, velocity of light c = 3 × 10⁸ m s⁻¹.)
- A.3 × 10¹⁰ J
- B.9 × 10¹³ J
- C.3 × 10¹³ J
- D.9 × 10¹⁰ J
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3.If 190 MeV energy is released due to fission of each nucleus of U-235, what mass of U-235 undergoes fission per hour in a reactor of power 300 MW? Take 1 a.m.u. = 1.66 × 10⁻²⁷ kg. Given: power of reactor = 300 MW = 300 × 10⁶ W
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4.Which of the following correctly describes the production of X-rays and γ-rays?
- A.X-rays are produced by nuclear disintegrations, while γ-rays are produced when electrons strike a metal target.
- B.X-rays are produced when fast-moving electrons strike a high atomic weight metal, while γ-rays are emitted from nuclei during radioactive decay.
- C.Both X-rays and γ-rays are produced by electron transitions outside the nucleus.
- D.X-rays and γ-rays are both produced by artificial or natural nuclear disintegrations.
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5.Do alpha and beta decay cause a change of element, known as transmutation?
- A.No, both decays only change the mass number.
- B.Yes, alpha decay moves the element two places back and beta decay moves it one place forward.
- C.Yes, but only alpha decay causes transmutation; beta decay does not.
- D.No, transmutation occurs only in gamma decay.
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