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.To study the age of excavated material of archaeological significance we study the rate of decay of an isotope of
- a.Uranium
- b.Cobalt
- c.Carbon
- d.Chlorine
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2.Which nuclear reaction was the first to be discovered, and what was its objective?
- A.¹⁴N + ⁴He → ¹⁷O + ¹H by Rutherford in 1919 to study nuclear transformations.
- B.²³⁸U + n → ²³⁹Pu by Fermi in 1934 to create transuranic elements.
- C.²H + ³H → ⁴He + n by Cockcroft-Walton in 1932 to achieve fusion.
- D.¹²C + ⁴He → ¹⁶O + γ by Chadwick in 1930 to detect neutrons.
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3.The isotope of $_{92}^{238}\mathrm{U}$ decays by alpha emission to an isotope of thorium (Th). The thorium isotope then decays by beta emission to an isotope of Protactinium (Pa). Which of the following correctly represents these two nuclear changes?
- A.$_{92}^{238}\mathrm{U} \rightarrow _{90}^{234}\mathrm{Th} \rightarrow _{91}^{234}\mathrm{Pa}$
- B.$_{92}^{238}\mathrm{U} \rightarrow _{91}^{234}\mathrm{Th} \rightarrow _{92}^{234}\mathrm{Pa}$
- C.$_{92}^{238}\mathrm{U} \rightarrow _{88}^{234}\mathrm{Th} \rightarrow _{89}^{234}\mathrm{Pa}$
- D.$_{92}^{238}\mathrm{U} \rightarrow _{90}^{238}\mathrm{Th} \rightarrow _{91}^{238}\mathrm{Pa}$
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4.Which of the following properties is shared by both beta rays and cathode rays?
- A.Both are composed of positively charged particles.
- B.Both are deflected by electric and magnetic fields.
- C.Both are emitted only by radioactive nuclei.
- D.Both travel at speeds greater than the speed of light.
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5.How does a helium atom differ from an alpha particle?
- A.A helium atom is neutral with two electrons, while an alpha particle is a positively charged helium nucleus.
- B.A helium atom is negatively charged, while an alpha particle is neutral.
- C.A helium atom and an alpha particle are identical in charge and structure.
- D.A helium atom has no nucleus, while an alpha particle contains protons and neutrons.
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