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.What is meant by nuclear energy, and what is responsible for its release?
- A.Nuclear energy is the energy released during chemical reactions, caused by the rearrangement of electrons.
- B.Nuclear energy is the energy released during nuclear reactions due to the loss of mass, converted into energy as per E = (Δm)c².
- C.Nuclear energy is the potential energy stored in atomic nuclei, released by changes in temperature.
- D.Nuclear energy is the kinetic energy of moving particles, released during radioactive decay of unstable isotopes.
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2.Why are free electrons generally not able to leave the metallic surface at ordinary temperatures?
- A.They are repelled by the positive ions in the metal lattice.
- B.They lack sufficient energy to overcome the attractive surface forces of the metal.
- C.The metal surface is always negatively charged, trapping them.
- D.They are too heavy to escape the gravitational pull of the metal.
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3.Which of the following best describes radioactive substances?
- A.Substances that emit light when exposed to electricity
- B.Substances with the property of self-emission of radiations
- C.Substances that absorb all forms of radiation
- D.Substances used only in nuclear reactors
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4.Which of the following is NOT a main source of nuclear waste creation?
- A.Household waste disposal sites.
- B.Nuclear power plants.
- C.Medical facilities using radioactive materials.
- D.Research laboratories.
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5.Compare the ionizing power of gamma radiations with that of alpha and beta particles. Which of the following statements correctly describes their relative ionizing power?
- A.Gamma radiations have the highest ionizing power, followed by alpha and then beta particles.
- B.Gamma radiations have the lowest ionizing power, roughly 10^-4 times that of alpha and 10^-2 times that of beta particles.
- C.Alpha particles have the lowest ionizing power, while gamma and beta particles have similar ionizing power.
- D.Beta particles have the highest ionizing power, followed by gamma and then alpha particles.
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