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.Calculate the energy released when 1 kg of mass is lost using Einstein's mass-energy equivalence relation.
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2.Can it be concluded from beta decay that electrons exist inside the nucleus?
- A.Yes, because beta particles are electrons emitted from the nucleus.
- B.No, beta particles are created at the instant of decay and do not reside in the nucleus.
- C.Yes, but only in unstable nuclei undergoing fission.
- D.No, because electrons are too large to fit inside the nucleus.
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3.35. A nucleus $\frac{A}{Z} X$ emits 2 α particles and 1 β particle to form a nucleus $\frac{222}{83} R$. Find the atomic number and mass number of X.
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4.What is the source of the energy released during radioactive decay?
- A.The kinetic energy of emitted particles.
- B.The difference in mass between reactants and products, converted to energy via $E = mc^2$.
- C.The potential energy stored in the nucleus.
- D.The chemical bonds breaking in the nucleus.
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5.What is the origin of X-rays and γ-radiations in an atom?
- A.Both are produced due to transitions of electrons in the outer orbits.
- B.X-rays originate from electron transitions in inner orbits; γ-radiations from the nucleus.
- C.Both are emitted from the nucleus during radioactive decay.
- D.X-rays are produced in the nucleus; γ-radiations from electron transitions.
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