In Davisson-Germer experiment the diffracted proton from crystal shows______________?
In Davisson-Germer experiment the diffracted proton from crystal shows______________? A. Particle propertyB. Wave property C. Light property D. Quantum property
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In Davisson-Germer experiment the diffracted proton from crystal shows______________? A. Particle propertyB. Wave property C. Light property D. Quantum property
The velocity of a particle of mass m of de-Broglie wavelength λ is______________? A. v = 3 ×× 106 ms-1 B. v = 2 ×× 10 ms-1 C. v = 2 ×× 6 ms-1D. v = 2 ×× 106 ms-1
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
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
If a photon is reflected from the mirror then the change in momentum of each photon is_______________? A. ZeroB. Double C. Half D. 1
If the wavelength of incident radiation is increased in photoemission then_________________? A. The maximum kinetic energy of the photoelectrons increases B. The minimum kinetic energy of the photoelectrons decreases C. The minimum kinetic energy of the photoelectrons increasesD. The average kinetic energy of the photoelectrons decreases
In a photoelectric effect monochromatic light is incident on a metal surface. If the incident light of twice the intensity but of same wavelength the kinetic energy of the emitted electron_______________? A. Becomes doubleB. Remains same C. Becomes half D. First increases then decrease because of the curvilinear graph
After traveling through a vacuum a photon of light entering into some transparent denser medium. Thus the energy of light______________? A. Increases because wavelength decreases B. Decreases because speed decreasesC. Remains same D. Increases then decrease
A transmitting station emits radio waves of wavelength λ at power P. If h is Planck’s constant & c the speed of light what is the rate of emission of photons ? A. λ B. Speed of soundC. Speed of lightB. D. h
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)