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Saturday, July 3, 2021
What is the de Broglie wave length associated with a proton moving with 25% of the velocity of light?
Related Questions:
(1)
Show that circumference of the Bohr orbit for hydrogen atom is an integral multiple of the de Broglie wavelength associated with the electron revolving about that orbit.
(2)
Why does a moving cricket ball not show wave like nature?
(3)
Calculate the speed and de Broglie wavelength of an electron that has been accelerated by a potential difference of 500 V.
(4)
The de Broglie wave length of an alpha particle is 6.28 × 10^–15m. Calculate the velocity of the alpha particle (mp = 1.672 × 10^–27kg, mn = 1.675 × 10^–27 kg).
Solved Questions:
(1)
Calculate the energy per mole of photon of electromagnetic radiations of wavelength 4000Å.
(2)
Suppose 10–17 J of light energy is needed by the interior of the human eye to see an object. How many photons of green light (wavelength =550 nm) are needed to generate this minimum amount of energy?
(3)
A bulb emits light of wave length 4500Å. The bulb is rated as 150 watt and 8% of the energy is emitted as light. How many photons are emitted by the bulb per second?
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