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
Photoelectric effect is the phenomenon in which?
  • A
    Photons come out of a metal when it is hit by a beam of electrons.
  • B
    Photons come out of the nucleus of an atom under the action of an electric field.
  • C
    Electrons come out of a metal with a constant velocity.
  • ✓
    Which depends on the frequency and intensity of incident light wave.
✓

Answer

Correct option: D.
Which depends on the frequency and intensity of incident light wave.

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

Out of the following options which one can be used to produce a propagating electromagnetic wave? 
→
A transistor is connected in common emitter $(CE)$ configuration. The collector supply is $8$  $V$ and the voltage drop across a resistor of $800$ $\Omega$ in the collector circuit is $0.5$  $V$. If the current gain factor $\alpha$  is $0.96$, find the base current......$μA$
→
In a Millikan's oil drop experiment the charge on an oil drop is calculated to be $6.35 \times {10^{ - 19}}C$. The number of excess electrons on the drop is
→
A coil of area $100$ cm$^2$ has 500 turns. Magnetic field of $0.1$ weber/metre$^2$  is perpendicular to the coil. The field is reduced to zero in 0.1 second. The induced e.m.f. in the coil is 
→
If two protons are moving with speed $v=4.5 \times 10^{5} \,m / s$ parallel to each other then the ratio of electrostatic and magnetic force between them
→
Which of the following element was discovered by study of Fraunhofer lines
→
The frequency of $1^{\text {st }}$ line of Balmer series in $H _2$ atom is $v _0$. The frequency of line emitted by singly ionised He atom is
→
When a plane mirror is placed horizontally on a level ground at a distance of $60m$ from the foot of a tower, the top of the tower and its image in the mirror subtend an angle of $90^\circ $ at the eye. The height of the tower will be.....$m$
→
The current sensitivity of a moving coil galvanometer can be increased by
→
The figure shows a network of four resistances and three batteries The electrical power dissipated as heat is .............. $W$
→