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A point source of light is used in a pho...

A point source of light is used in a photoelectric effect. If the source is removed farther from the emitted metal, the stopping potential

A

will increase

B

will decrease

C

will remain constant

D

will either increase or decrease

Text Solution

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The correct Answer is:
C
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RESONANCE-ATOMIC PHYSICS-Exercise (2) Only one option correct type
  1. The photoelectrons emitted from a metal surface:

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  2. A point source of light is used in a photoelectric effect. If the sour...

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  3. The work function for sodium surface is 2.0eV and that for aluminium s...

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  4. A point source causes photoelectric effect from a small metal plate. W...

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  5. In a photoemissive cell, with exciting wavelength lambda, the faster e...

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  6. A caesium photocell , with a steady potential difference of 60 V acros...

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  7. The frequency and intensity of a light source are both doubled. Consid...

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  8. When a monochromatic point source of light is at a distance of 0.2 m...

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  9. An image of the sun is formed by a lens, of the focal length of 30 cm,...

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  10. The work function of a certain metal is (hC)/lambda(0). When a monochr...

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  11. Radiation pressure on any surface (for given intensity):

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  12. The radiation force experienced by body exposed to radiation of intens...

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  13. Which one of the following statements is NOT true for de Broglie waves...

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  14. An alpha particle of energy 5 MeV is scattered through 180^(@) by a fo...

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  15. The wavelength of K(alpha) X-rays of two metals A and B are 4 // 1875 ...

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  16. An atom consists of theree energy levels given by a ground state with ...

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  17. Let v(1) be the frequency of series limit of Lyman series, v(2) the fr...

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  18. The energy different between the first two levels of hydrogen atom is ...

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  19. The relation between lambda(1)= wavelength of series limit of Lyman se...

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  20. Ultraviolet light of wavelengths lambda(1) and lambda(2) when allowed ...

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