Q7 of 30 Page 213

An electron (mass m) with an initial velocity is in an electric field . It’s de Broglie wavelength at time t is given by


A Moving wave particle's associated with the de Broglie wavelength


According to the de-Broglie wavelength


Initial de-Broglie wavelength


-------------(i)


Acceleration of electron



Velocity after time t



So,


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Five charges, q each are placed at the corners of a regular pentagon of side ‘a’ as shown.


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