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Radiation of wavelength 120 nm ejects ph...

Radiation of wavelength 120 nm ejects photoelectrons from a plate whose work function is 3.0 eV. If a magnetic field of flux density `4.0 xx10^-5` T is applied parallel to the plate, then the radius of the path followed by electrons ejected normally from the plate with maximum energy will be

A

0.12 m

B

0.23 m

C

0.35 m

D

0.46 m

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The correct Answer is:
B
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TARGET PUBLICATION-ELECTRONS AND PHOTONS-Evaluation Test
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  9. Illuminating a metal surface alternately with wavelengths lambda1 and ...

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  13. Assertion: Work function of a metal is proportional to maximum wavelen...

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  14. The retarding potential for having zero photoelectron current

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

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  16. Light of wavelength 3000 Å falls on a sensitive surface. If the surfac...

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  17. The work function for aluminium is 4.125 eV. The cut-off wavelength fo...

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