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A chemist was performing an experiment to study the effect of varying voltage on the velocity and de Broglie wavelength of the electrons. In first experiment, the electron was accelerated through a potential difference of 1kV and in second experiment, it was accelerated through a potential difference of 2kV. The wavelength of de Broglie waves associated with electron is given by: `lamda=(h)/(sqrt(2qVm))` where, V is the voltage through which an electron is accelerated. Putting the values of h, m and q we get: `lamda=(12.3)/(sqrt(V))`Ã… Q. The wavelength of electron will be:A. 1.4 times in first case than in second caseB. 1.4 times in second case than in first caseC. double in second case than in first caseD. double in first case than in second case

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