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.Assertion : Separation of isotope is possible because of the difference in electron numbers of isotope. Reason : Isotope of an element can be separated by using a mass spectrometer. (a) Both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion. (b) Both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion. (c) Both the Assertion and Reason are incorrect. (d) The Assertion is incorrect but the Reason is correct.
- a.Both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
- b.Both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
- c.Both the Assertion and Reason are incorrect.
- d.The Assertion is incorrect but the Reason is correct.
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2.How do beta particles behave in electric and magnetic fields, and why is their deflection greater than that of alpha particles?
- A.Beta particles are deflected due to their negative charge and deflect more because they are lighter than alpha particles.
- B.Beta particles are not deflected in electric or magnetic fields because they are neutral.
- C.Beta particles deflect less than alpha particles because they carry a smaller charge.
- D.Beta particles deflect more because they have a larger charge than alpha particles, despite being heavier.
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3.What are radio-isotopes, and which of the following is NOT one of their uses?
- A.Unstable isotopes emitting radiation; used in carbon-14 dating.
- B.Stable isotopes with no radiation; used in nuclear reactors.
- C.Radioactive isotopes; used as tracers in medicine and industry.
- D.Radioactive isotopes; used for therapeutic purposes in medicine.
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4.A uranium nucleus $^{238}_{92}\mathrm{U}$ undergoes several disintegrations and ultimately decays to a lead nucleus $^{206}_{82}\mathrm{Pb}$. How many alpha and beta particles are emitted in this process?
- A.6 α-particles and 8 β-particles
- B.8 α-particles and 6 β-particles
- C.4 α-particles and 10 β-particles
- D.10 α-particles and 4 β-particles
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5.Which of the following is NOT a property of X-rays?
- A.X-rays require a material medium for propagation.
- B.X-rays travel in straight lines in a vacuum at the speed of light.
- C.X-rays are not deflected by electric or magnetic fields.
- D.X-rays affect a photographic plate.
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