Davison Germer experiment indicates
A. Interference
B. Polarization
C. Electron diffraction
D. Refraction
Davison Germer experiment indicates Read More »
Physics
In Compton scattering, the change in wavelength is maxed if
A. The angle of scattering is 90°
B. The angle of scattering is 60°
C. The angle of scattering is 180°
D. The angle of scattering is 0
In Compton scattering, the change in wavelength is maxed if Read More »
The name of the photon for quantum of light was proposed by
A. Ampere
B. Plank
C. Thomson
D. Einstein
The name of the photon for quantum of light was proposed by Read More »
As the temperature of black body is raised the wavelength corresponding to maximum intensity
A. shifts towards longer wavelength
B. shifts towards shorter wavelength
C. remain the same
D. shifts towards longer as well as shorter wavelengths
Einstein’s photoelectric equation is given by
A. 1/2 mvmax2=hf+Φ
B. 1/2 mvmax2-hf = Φ
C. 1/2 mvmax2=hf-Φ
D. All of above are correct
Einstein’s photoelectric equation is given by Read More »
Rest mass of a photon is
A. infinite
B. zero
C. very small
D. 1.67 x 10-27 kg
Rest mass of a photon is Read More »
If a material object moves with speed of light its mass becomes
A. equal to its rest mass
B. double of its rest mass
C. infinite
D. zero
If a material object moves with speed of light its mass becomes Read More »
Select an alternative from of uncertainly principle from the following
A. ΔE = h/mΔc(1-cosθ)
B. ΔE . Δt = h
C. mc2 = hv
D. Any of above
Select an alternative from of uncertainly principle from the following Read More »
The existence of Ether wind was experimentally rejected by
A. equal to its rest mass
B. double of its rest mass
C. infinite
D. zero
The existence of Ether wind was experimentally rejected by Read More »
Stopping potential for a metal surface in case of photoelectric emission depends on
A. the threshold frequency for the metal surface
B. the intensity of incident light
C. the frequency of incident light and work function of the metal surface
D. all of the above
Stopping potential for a metal surface in case of photoelectric emission depends on Read More »