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Radiation of 4f(0) frequency is incident...

Radiation of `4f_(0)` frequency is incident on metal surface with `f_(0)` threshold frequency maximum kinetic energy of photo-electric emitted will be ….

A

`3hf_(0)`

B

`2hf_(0)`

C

`(3hf_(0))/(2)`

D

`(hf_(0))/(2)`

Text Solution

Verified by Experts

The correct Answer is:
A
`(1)/(2)mv_(max)^(2)=hf-hf_(0)`
`=4hf_(0)-hf_(0)=3hf_(0)`
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KUMAR PRAKASHAN-DUAL NATURE OF RADIATION AND MATTER-Section-D (multiple choice questions (MCQs)
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  2. Electrons are emitted from photo-cell with maximum speed of 4xx10^(8) ...

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  3. Radiation of 4f(0) frequency is incident on metal surface with f(0) th...

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  5. Four photon of lambda gt lambda(0) are incident on metal surface ……..p...

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  6. If ratio of threshold frequencies of two metals is 1:3 ,ratio of their...

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  7. When a piece of sodium or potassium are exposed to sunlight ……..

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  8. If photo-electric effect is not seen with the ultraviolet radiation in...

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  9. Threshold wavelength of metal is 30 Å If radiation of 2000Å Is inciden...

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  10. Work function of metal A,B and C are 4.5 eV 4.3 eV and 3.8eV respectiv...

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  11. What will be maximum value of wavelength by which photo-electric emiss...

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  13. Photo-electric emission is observed from a metalli surface for frequen...

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  14. If photo-electric effect,when frequency of incident radiation is doubl...

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  15. For metals cesium ,potassium ,sodium and lithium graph of stopping pot...

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  16. Maximum kinetic energy of photoelectron emitted is independent of ……

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  19. When monochromatic source is kept at distance of 0.2 m from photocell,...

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  20. Maximum speed of electron emitted from metal surface is 5xx10^(6 )ms^(...

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