Download App

Dual Nature of Radiation and Matter — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsDual Nature of Radiation and Matter1 Mark
MCQ
The stopping potential is directly related to:
  • A
    The work function of the metal.
  • B
    Intensity of incident radiation.
  • C
    The saturation current for the given frequency.
  • D
    The kinetic energy gained by the photoelectrons.
✓

Answer

  1. The kinetic energy gained by the photoelectrons.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from Dual Nature of Radiation and Matter→Dual Nature of Radiation and Matter — all question types→Physics STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

The half-life of   is 100μs. The time taken for the radioactivity of a sample of   to decay to 1/16th of its initial value is

(a) 400 μs

(b) 6.3 μs

(c) 40 μs

(d) 300 μs

→
Taking the Bohr radius as a0 = 53pm, the radius of Li++ ion in its ground state, on the basis of Bohr’s model, will be about:
→
At temperature 0K, the germanium behaves as a/ an:
→
36 cells, each of emf 4V are connected in series and kept in a box. The combination shows an emf of 88V on the outside. Calculate the number of cells reversed.
→
The electric potential at the centre of a charged spherical conductor in comparison with the potential at the surface of the conductor:
→

A heater of 220 V heats a volume of water in 5 minute time. A heater of 110 V heats the same volume of water in

(a) 5 minutes

(b) 8 minutes

(c) 10 minutes

(d) 20 minutes
→

If   undergoes successively 8 a-decays and 6 b-decays, then resulting nucleus is

(a)  

(b)  

(c)  

(d)  
→
Mark out the correct options.
  1. The total charge of the universe is constant.
  2. The total positive charge of the universe is constant.
  3. The total negative charge of the universe is constant.
  4. The total number of charged particles in the universe is constant.
→
When stopping potential is applied in an experiment on photoelectric effect, no photocurrent is observed. This means that:
  1. The emission of photoelectrons is stopped.
  2. The photoelectrons are emitted but are reabsorbed by the emitter metal.
  3. The photoelectrons are accumulated near the collector plate.
  4. The photoelectrons are dispersed from the sides of the apparatus.
→

The stopping potential as a function of the frequency of the incident radiation is plotted for two different photoelectric surfaces A and B. The graphs show that work function of A is

(a) Greater than that of B

(b) Smaller than that of B

(c) Equal to that of B

(d) No inference can be drawn about their work functions from the given graphs
→