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

In the context of Doppler effect in light, the term ‘red shift’ signifies

(a) Decrease in frequency

(b) Increase in frequency

(c) Decrease in intensity

(d) Increase in intensity
→

A thin rod of length f/3  lies along the axis of a concave mirror of focal length f.  One end of its magnified image touches an end of the rod. The length of the image is

(a) f  

(b)  

(c) 2f

(d)  
→
A hole diffuses from the p-side to the n-side in a p-n junction. This means that.
→

In the figure shown there are two semicircles of radii  and  in which a current i is flowing. The magnetic induction  at the centre O will be

(a)  (

(b)   (

(c)  

(d)  
→

A ray of light incident at an angle θ on a refracting face of a prism emerges from the other face normally. If the angle of the prism is 5º and the prism is made of a material of refractive index 1.5, the angle of incidence is:

→
For diffraction of light, it is necessary that the size of the obstacle in comparison to the wavelength of light waves will be :
→

The current is flowing in south direction along a power line. The direction of magnetic field above the power line (neglecting earth's field) is

(a) South

(b) East

(c) North

(d) West
→

The de-Broglie wavelength of an electron in the first Bohr orbit is

(a) Equal to one fourth the circumference of the first orbit

(b) Equal to half the circumference of the first orbit

(c) Equal to twice the circumference of the first orbit

(d) Equal to the circumference of the first orbit
→
The magnetic dipole moment of a magnetic dipole is given by the formula ________.
→

An alternating voltage of 141.4V (rms) is applied to a vacuum diode as shown in the figure. The maximum potential difference across the condenser will be

(a) 100 V

(b) 200 V

(c) 100 

(d) 200 
→