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When photons of energy hv are incident o...

When photons of energy hv are incident on the surface of photosensitive material of work function `hv_0`, then

A

the kinetic energy of all emitted electrons is `hv_(0)`

B

the kinetic energy of all emitted electrons is `h(v - v_(0))`

C

the kinetic energy of all fastest electrons is `h(v - v_(0))`

D

the kinetic energy of all emitted electrons is hv.

Text Solution

Verified by Experts

The correct Answer is:
3
Energy = Work + KE
Incident Funtion
`hn = hn_(0) + KE_(max)`
`KE_(max)=h(n-n_(0))`
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NARAYNA-DUAL NATURE OF RADIATION AND MATTER-EXERCISE - 2 (C.W)
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  2. The threshold frequency for a metal is 10^(15) Hz. When light of wave...

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  3. When photons of energy hv are incident on the surface of photosensitiv...

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  4. The thereshold wavelenght for a metal of work function W(0) is lambd...

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  5. The number of photoelectrons emitted for light of a frequency v (highe...

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  6. When photons of energy hv fall on an aluminium plate (of work function...

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  7. A photosensitive metallic surface has work funtion hv(0). If photons o...

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  8. The work functions for metals A, B and C are respectively 1.92 eV, 2....

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  9. K.E. of photo electron is E when incident frequency is lambda(1). It ...

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  10. Maximum velocity of photo electrons is 3.5 xx 10^(6) m//s. If the spec...

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  11. Light from a hydrogen discharge tube is made incident on the cathode o...

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  12. Photoelectric emission is observed from a metallic surface for frequen...

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  13. In an experiment on photo- electric effect, stopping potential is 1.0 ...

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  14. The work functions of metals A and B are in the ratio 1 : 2. If light ...

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  15. A particle with rest mass m0 is moving with velocity c. what is the d...

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  16. Photon and electron are given same energy (10^(-20) J). Wavelength ass...

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  17. If an electron and an alpha - particle are accelerated from rest throu...

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  18. The wavelength of de-Broglie wave associated with a thermal neutron of...

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  19. The De Broglie wavelenght associated with electron in n Bohr orbit is

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  20. A proton and an alpha-particle are accelerated through same potential ...

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