1.

An electron in an electron microscope with initial velocity `v_(0)hati` enters a region of a stray transverse electric field` E_(0)hatj` . The time taken for the change in its de-Broglie wavelength from the initial value of `lambda` to `lambda//3` is proportional toA. `E_(0)`B. `(1)/(E_(0))`C. `(1)/(sqrt(E_(0)))`D. `sqrt(E_(0))`

Answer» Correct Answer - B


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