Eamcet Physics - 2 nd Year : Unit 7.1 ( Dual Nature of Matter And Radiation ) - Dual Nature of Matter And Radiation Free Online Tests | Mock Tests | Preparation | Practice Tests

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2 nd Year : Unit 7.1 ( Dual Nature of Matter And Radiation ) - Dual Nature of Matter And Radiation

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The maximum wavelength of light that can be used to produce photoelectric effect on a metal is 250nm. The maximum K.E of the electrons in joule, emitted from the surface of the metal when a beam of light of wavelength 200 nm is used:

A. 89 .61 x 10^-22

B. 69.81 x 10_-22

C. 18.96 x 10^-20

D. 19.86 x 10^-20

E. None of the above

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Correct choice: D

Explanation:

None

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Eamcet Physics 2 nd Year : Unit 7.1 ( Dual Nature of Matter And Radiation ) - Dual Nature of Matter And Radiation

Eamcet Physics
2 nd Year : Unit 7.1 ( Dual Nature of Matter And Radiation ) - Dual Nature of Matter And Radiation