Davison Germer experiment indicates__________________?
A. Interference
B. Polarization
C. Electron diffraction
D. Refraction
Modern Physics
In Compton scattering, the change in wavelength is maxed if_______________?
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
The name of the photon for quantum of light was proposed by________________?
The name of the photon for quantum of light was proposed by________________?
A. Ampere
B. Plank
C. Thomson
D. Einstein
As the temperature of black body is raised the wavelength corresponding to maximum intensity________________?
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_______________?
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
Rest mass of a photon is________________?
Rest mass of a photon is________________?
A. infinite
B. zero
C. very small
D. 1.67 x 10-27 kg
If a material object moves with speed of light its mass becomes ________________?
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
Select an alternative from of uncertainly principle from the following_______________?
Select an alternative from of uncertainly principle from the following_______________?
A. ∆E = h/m∆c(1-cosθ)
B. ∆E . ∆t = h
C. mc2 = hv
D. Any of above
The existence of Ether wind was experimentally rejected by__________________?
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
Stopping potential for a metal surface in case of photoelectric emission depends on_____________?
Stopg 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