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NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)-ELECTRONS AND PHOTONS-All Questions
- The photoelectric threshold wavelength of silver is 3250 xx 10^(-10) m...
05:39
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- The de - Broglie wavelength of a neutron in thermal equilibrium with h...
01:29
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- An electron of mass m and a photon have same energy E. The ratio of de...
01:47
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- When a metallic surface is illuminated with radiation of wavelength la...
02:46
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- Electrons with de-Broglie wavelength lambda fall on the target in an X...
03:31
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- Photons with energy 5 eV are incident on a cathode C in a photoelectri...
02:33
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- A radiation of energy E falls normally on a perfctly refelecting surfa...
00:56
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- When a certain metallic surface is illuminated with monochromatic ligh...
02:54
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- Which of the following figure represents the variation of particle mom...
01:55
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- A photoelectric surface is illuminated successively by monochromatic l...
02:08
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- Light of wavelength 500 nm is incident on a metal with work function 2...
04:03
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- When the energy of the incident radiation is increased by 20 % , kinet...
02:59
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- If the kinetic energy of the particle is increased to 16 times its pre...
01:57
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- For photoelectric emission from certain metal the cut - off frequency ...
01:15
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- The wavelength lambda(e ) of an electron and lambda(p) of a photon of ...
02:14
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- Monochromatic radiation emitted when electron on hydrogen atom jumps f...
03:44
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- A modern 200 W sodium street lamp emits yellow light of wavelength 0.6...
02:04
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- Light of two different frequencies whose photons have energies 1eV and...
02:58
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- Photoelectric emission occurs only when the incident light has more th...
01:29
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- In photoelectric emission process from a metal of work function 1.8 eV...
02:21
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