A. ∆E = h/m∆c(1-cosθ)
B. ∆E . ∆t = h
C. mc2 = hv
D. Any of above
Related Mcqs:
- In obtaining an X-ray photograph of our hand we use the principle of______________?
A. photo electric effect
B. ionization
C. shadow photograph
D. any of above - An observer shoots parallel to a meter stick at very high (relativistic) speed and finds that the length of meter stick is________________?
A. greater than one meter
B. less than one meter
C. one meter
D. a foolish question - Linear momentum of a photon is_______________?
A. zero
B. hv/c2
C. hv/c
D. c2/hv - Rest mass of a photon is________________?
A. infinite
B. zero
C. very small
D. 1.67 x 10-27 kg - 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 - Which one of the following has the largest energy content ?
A. 103 photons of wavelength 2 pm (γ-rays)
B. 102 photons of wavelength 1nm (x-rays)
C. 106 photons of wavelength 50?m (infrared)
D. 106 photons of wavelength 200nm (UV) - If n number of the photon is striking on a metal surface then total momentum exerted is_______________?
A. p
B. n
C. 0
D. None - A photon of wavelength 900nm behaves like a particle of mass______________?
A. 5.53 x 10-36kg
B. 0 kg.
C. 2.46 x 10-36kg
D. 1.84 x 10-44kg - 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 - A three-dimensional image is obtained by________________?
A. Electron microscope
B. Scanning electron microscope
C. Magnetic imaging
D. None of the above
