1.

A physical was performing experiments to study the velociyt and wavelength of the electron. In one case, the electron was accelerated through a potential differences of 1 KV and in second case it was accelerated through a potential difference of 2KV. In order to have half the velocity in the second case than in the first case, the potential applied should be

Answer»

0.5 KV
2 KV
0.25 KV
0.75 KV

Answer :C


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