Dual Nature of Matter and Radiation questions
494 published questions with worked solutions.
- A photosensitive metallic surface has work function, h _ 0 . If photons of energy 2h _ 0 fall on this surface, the electrons come...
- A particle of mass 9.1 10^ -31 kg travels in a medium with a speed of 10^6m/s and a photon of a radiation of linear momentum 10^...
- An electron and proton are separated by a large distance. The electron starts approaching the proton with energy 3 eV. The proton...
- In a photoelectric experiment, increasing the intensity of incident light :
- A monochromatic neon lamp with wavelength of 670.5 nm illuminates a photo-sensitive material which has a stopping voltage of 0.48...
- A moving proton and electron have the same de-Broglie wavelength. If K and P denote the K.E. and momentum respectively. Then...
- An electron of mass m_e and a proton of mass m_p=1836m_e are moving with the same speed. The ratio of their de Broglie wavelength...
- The stopping potential for electrons emitted from a photosensitive surface illuminated by light of wavelength 491 nm is 0.710 V....
- An particle and a proton are accelerated from rest by a potential difference of 200 V. After this, their de Broglie wavelengths...
- An electron moving with speed v and a photon moving with speed c, have same D-Broglie wavelength. The ratio of kinetic energy of...
- When radiation of wavelength is incident on a metallic surface, the stopping potential of ejected photoelectrons is 4.8 V. If the...
- What should be the order of arrangement of de-Broglie wavelength of electron ( _e), an -particle ( _ ) and proton ( _p) given...
- The de-Broglie wavelength of a particle having kinetic energy E is . How much extra energy must be given to this particle so that...
- In a photoelectric experiment ultraviolet light of wavelength 280 nm is used with lithium cathode having work function = 2.5 eV....
- The electric field in a plane electromagnetic wave is given by E =200 [ ( 0.5 10^3 m )x- (1.5 10^ 11 rad s t ) ] V m j If this...
- Two stream of photons, possessing energies equal to twice and ten times the work function of metal are incident on the metal...
- Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : An electron...
- When light of frequency twice the threshold frequency is incident on the metal plate, the maximum velocity of emitted electron is...
- A metal exposed to light of wavelength 800 nm and emits photoelectrons with a certain kinetic energy. The maximum kinetic energy...
- A proton, a neutron, an electron and an -particle have same energy. If _ p , _ n , _ e and _ are the de Broglie's wavelengths of...
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