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According to Einstein's quantum theory light propagates in the form of packets i.e. quanta of energy, which is called photon. The rest mass of photons is being zero. It can be shown, according to the relativity theory of light. According to the relativistic theory equation, the mass of the photon is computed as: m = m 0 √ 1 − v 2 c 2. m 0 ...
A photon moves vertically up in a region with gravitational field g downwards. The frequency of photon at an instant is ν . After it has moved up by a small height h,
An electron (of mass m) and a photon have the same energy E in the range of a few eV. The ratio of the de-Broglie wavelength associated with the electron and the wavelength of the photon is (c = speed of light in vacuum)
Calculate the mass of a photon with wavelength 3.6 A 0. Name the principle/equation/concept used. Name the principle/equation/concept used. ( 1 A 0 = 1 × 10 − 10 m , speed of light = 3 × 10 8 m s − 1 , h = 6.626 × 10 − 34 J S ) 03
Q 4. solve 13): 13. A photon ofenergy hv is absorbed by a free electron of metal having work function ϕ ϕ ϕ <hv then. a) the electron is sure to come out. b) the electron is sure to come out with K.E. (hv - ϕ ϕ ϕ) c) either the electron does not come out or it comes out with K.E. (hv + ϕ ϕ ϕ) View Solution. Q 5.
The dynamic mass of a photon having a wavelength of 10 nm is: View Solution. Q3.
The rest mass of a photon of wavelength λ is. View Solution. Click here:point_up_2:to get an answer to your question :writing_hand:what is the effective mass of photon having wavelength lambda.
In the arrangement of three blocks as shown in F i g. 6.135, the string is inextensible.If the directions of accelerations are as shown in the figure, then determine the constraint relation.
An electron has mass 9.1 × 10 − 28 g and is moving with a velocity of 10 5 c m / s e c. Calculate its wavelength when h = 6.626 × 10 − 27 e r g − s e c . View Solution
A dye absorbs a photon of wavelength λ and re-emits the same energy into two photons of wavelength λ 1 and λ 2 respectively. The wavelength λ is related to λ 1 and λ 2 as: View Solution
