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From the figure describing photoelectric...

From the figure describing photoelectric effect we may infer correctly that

A

Na and Al both have the same threshold frequency

B

Maximum kinetic energy for both the metals depend linearly on the frequency

C

The stopping potentials are different for Na and Al for the same change in frequency

D

Al is better photosensitive material than Na

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AAKASH INSTITUTE-DUAL NATURE OF RADIATION AND MATTER -ASSIGNMENT SECTION A. Objective (Only one answer)
  1. Two sources A and B have same power . The wavelength of radiation of A...

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  2. The work function of a certain metal is 2.3 eV. If light of wave numbe...

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  3. When the electromagnetic radiations of frequencies 4 xx 10^(15) Hz and...

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  4. If the velocity of an electron is doubled, its de-Broglie frequency wi...

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  5. The duration of a laser pulse is 10^(-8) s. The uncertainly in its ene...

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  6. A proton and an alpha particle are accelerated through the same potent...

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  7. How many photons are emitted by a laser source of 5 xx 10^(-3) W opera...

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  8. The number of photons emitted by a 60 W bulb per second, if 10% of the...

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  9. The momentum of a photon having energy equal to the rest energy of an ...

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  10. A perfectly reflecting solid hemisphere of radius R is placed in the p...

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  11. Find the ratio of de Broglie wavelength of molecules of hydrogen and h...

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  12. A particle which has zero rest mass and non - zero energy and momentum...

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  13. Dual Nature Of Electromagnetic Radiation

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  14. An electron of mass m when accelerated through a potential difference ...

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  15. If an electron and a photon propagate in the form of waves having the...

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  16. The de - Broglie wavelength of a neutron at 27 ^(@) C is lambda. What ...

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  17. The wavelength of the matter wave is independent of

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  18. The graph between intensity of light falling on a metallic plate (l) w...

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  19. A point source of light is used in an experiment on photoelectric effe...

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  20. From the figure describing photoelectric effect we may infer correctly...

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