ICSE Class 10 Dual Nature of Radiation and Matter — Mock Test (2027)
Free online mock test for Dual Nature of Radiation and Matter (ICSE Class 10 Physics) — 87 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 Dual Nature of Radiation and Matter 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.The minimum negative (retarding) potential given to the collector plate for which the photocurrent becomes zero is called the:
- A.Threshold potential
- B.Stopping (cut-off) potential
- C.Accelerating potential
- D.Saturation potential
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2.Assertion (A): The Davisson-Germer experiment confirmed the wave nature of electrons. Reason (R): De Broglie had proposed that material particles such as electrons possess wave-like character.
- A.Both A and R are true and R is the correct explanation of A
- B.Both A and R are true but R is NOT the correct explanation of A
- C.A is true but R is false
- D.A is false but R is true
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3.The threshold frequency for photoelectric emission:
- A.Is the same for all metals
- B.Depends on the nature of the emitter material
- C.Depends only on the intensity of light
- D.Is always in the infrared region
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4.Assertion (A): Increasing the intensity of light of a given frequency increases the photoelectric current but not the maximum kinetic energy of the photoelectrons. Reason (R): Intensity determines the number of photons per second, while the energy of each photon is fixed by the frequency.
- A.Both A and R are true and R is the correct explanation of A
- B.Both A and R are true but R is NOT the correct explanation of A
- C.A is true but R is false
- D.A is false but R is true
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5.A monochromatic source emits light of wavelength 620 nm. The energy of each photon expressed in electron volts is (take hc = 1240 eV nm):
- A.1.0 eV
- B.2.0 eV
- C.3.1 eV
- D.4.0 eV
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