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NEET 2011 Physics question

PhysicsDual Nature of Matter and RadiationNEET 2011

Electrons used in a electron microscope are accelerated by a voltage of 25 kV. If the voltage is increased to 100 kV then the de-Broglie wavelength associated with the electrons would :

Answer: (2)

Solution

For an electron accelerated through V volts, . So

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Question ID VK-090968