Dual Nature of ...

A 5 W source emits monochromatic light of wavelength 5000 Å . When placed 0.5 m away, it liberates photoelectrons from a photosensitive metallic surface. When the source is moved to a distance of 1.0 m, the number of photoelectrons liberated will be reduced by a factor of

Stopping potential required to reduce the photoelectric current to zero

From the figure, describing photoelectric effect we may infer correctly that

In Bainbridge mass spectrograph, the ion C¹² strikes the photograph plate at a distance of 12 cm from the slit. At what distance from the slit will be ion C¹⁴ strike?

Planck’s constant has the dimensions of

Energy of a photon can not be represented by

A particle which has zero rest mass and non – zero energy and momentum must travel with a speed of

The work function of metal surface is 4.2 eV. The maximum wavelength which can eject electrons from this metal surface is

A photocell with a constant p.d of V volt across it is illuminate by a point source from a distance of 25 cm. When the source is moved to a distance of 1m, the electron emitted by the photocell.

The correct curve between the stopping potential (Vs) and intensity of incident light (I) is