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
-
1.Beta decay is a type of radioactive decay in which a proton is transformed into a neutron or vice versa inside the nucleus of the radioactive sample. We can say, during β-emission an electron is ejected from the atom of the radioactive substance. The electron is ejected from the:
- a.orbit of the atom
- b.nucleus of the atom
- c.space around the nucleus
- d.none of these
-
2.Which of the following correctly distinguishes the properties of alpha (α), beta (β), and gamma (γ) radiations based on their nature, speed, rest mass, charge, specific charge, wavelength, effect of electric and magnetic fields, ionising power, penetrating power, stopping substance, and biological damage?
- A.α-particles are helium nuclei with high ionising power and low penetrating power, β-particles are fast electrons with moderate ionising and penetrating power, and γ-radiations are massless electromagnetic waves with minimal ionising power but high penetration.
- B.α-particles are electromagnetic waves with no charge, β-particles are positively charged helium nuclei, and γ-radiations are high-speed electrons with the highest ionising power.
- C.α-particles have the highest speed and charge, β-particles are uncharged and massless, and γ-radiations are stopped by thin paper but cause immense biological damage.
- D.α-particles and β-particles both have no rest mass, γ-radiations are negatively charged, and all three are equally deflected in electric and magnetic fields.
-
3.If in nuclear fission of a piece of uranium, 0.5 g mass is lost, how much energy in kWh is obtained? Given: loss in mass Δm = 0.5 g = 0.5 × 10⁻³ kg
- A.1.25 × 10⁷ kWh
- B.4.5 × 10¹³ kWh
- C.1.39 × 10⁴ kWh
- D.3.47 × 10⁶ kWh
-
4.What are mirror isobars?
- A.Isobars where the number of protons and neutrons in the nucleus are interchanged, e.g., $^{23}_{11}\mathrm{Na}$ and $^{23}_{12}\mathrm{Mg}$.
- B.Isotopes of the same element with identical mass numbers but different atomic numbers.
- C.Atoms with the same number of neutrons but different numbers of protons.
- D.Elements with identical atomic numbers but different mass numbers, e.g., $^{12}_{6}\mathrm{C}$ and $^{14}_{6}\mathrm{C}$.
-
5.Gamma rays have frequency that of $X$-rays.
- a.equal to
- b.smaller than
- c.larger than
- d.none of these
Ready? Take the full 20-question test free — instant marking, no sign-up needed.
▶ Start free mock test