A photon is________________?
(A) A unit of energy
(B) A positively charged particle
(C) A quantum of electromagnetic radiation
(D) A unit of wavelength
Davison Germer experiment indicates__________________?
(A) Interference
(B) Polarization
(C) Electron diffraction
(D) Refraction
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________________?
(A) Ampere
(B) Plank
(C) Thomson
(D) Einstein
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
In the electron microscope, electric & magnetic fields are used as_______________?
(A) Electromagnetic gun
(B) Source of electromagnetic waves
(C) Deflecting charged particle
(D) Converging source of electrons
In an electron microscope, we use energetic particles because of______________?
(A) Penetrating power is high
(B) Kinetic energy is large
(C) Wavelength is very short
(D) All the above reasons
If a diffraction grating is placed in the path of a light beam it reveals______________?
(A) Wave property
(B) Particle property
(C) Energy particle
(D) Electromagnetic wave property