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The wavelength associated with and electron accelerated through a potential difference of 100 V is of the order of 

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Important Questions on Dual Nature of Matter and Radiation

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Alpha Question Bank for Medical: Physics>Chapter 32 - Dual Nature of Matter and Radiation>Exercise-1>Q 32
The work function of a photometal is 6.63 eV. The threshoid wavelength is
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Alpha Question Bank for Medical: Physics>Chapter 32 - Dual Nature of Matter and Radiation>Exercise-1>Q 33
The speed of an electron having a wavelength of 10-10 m is :-
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Alpha Question Bank for Medical: Physics>Chapter 32 - Dual Nature of Matter and Radiation>Exercise-1>Q 34

Sodium and copper have work function 2.3 eV and 4.5 eV respectively. Then, the ratio of the wavelength is nearest to:

 

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Alpha Question Bank for Medical: Physics>Chapter 32 - Dual Nature of Matter and Radiation>Exercise-1>Q 35
The de-Broglie wavelength λ
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Alpha Question Bank for Medical: Physics>Chapter 32 - Dual Nature of Matter and Radiation>Exercise-1>Q 36
The minimum wavelength of photon is 5000 Å, its energy will be 
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Alpha Question Bank for Medical: Physics>Chapter 32 - Dual Nature of Matter and Radiation>Exercise-1>Q 37
The wavelength associated with and electron accelerated through a potential difference of 100 V is of the order of 
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Alpha Question Bank for Medical: Physics>Chapter 32 - Dual Nature of Matter and Radiation>Exercise-1>Q 38
The slope of a graph drawn between frequency and stopping potential is
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Alpha Question Bank for Medical: Physics>Chapter 32 - Dual Nature of Matter and Radiation>Exercise-1>Q 39
The photoelectric work function of a metal is 3.3eV. The threshold frequency for this metal is approximately