ICSE Class 10 Dual Nature of Radiation and Matter — Mock Test

Free online mock test for Dual Nature of Radiation and Matter (ICSE Class 10 Physics) — 87 competency-based questions with instant marking. Try the samples below, then take the full test free.

Sample questions

1. 1.The de Broglie wavelength of a particle of momentum 3.315 x 10^-24 kg m/s is (h = 6.63 x 10^-34 J s):
   • A.2.0 x 10^-10 m
   • B.5.0 x 10^-10 m
   • C.2.0 x 10^-9 m
   • D.5.0 x 10^-11 m
2. 2.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
3. 3.The work function of caesium is 2.14 eV (h = 6.63 x 10^-34 J s). The threshold frequency for caesium is closest to:
   • A.5.16 x 10^14 Hz
   • B.3.23 x 10^14 Hz
   • C.1.03 x 10^15 Hz
   • D.2.14 x 10^14 Hz
4. 4.In Hallwachs' experiment, a negatively charged zinc plate connected to an electroscope, when illuminated by ultraviolet light:
   • A.Gained more negative charge
   • B.Lost its charge
   • C.Remained unaffected
   • D.Melted due to heat
5. 5.The work function of caesium is 2.14 eV. Light of frequency 6 x 10^14 Hz is incident (h = 4.14 x 10^-15 eV s). The maximum kinetic energy of the emitted electrons is closest to:
   • A.0.34 eV
   • B.2.14 eV
   • C.2.48 eV
   • D.0.60 eV