Q 3344178953.     The contribution in the total current flowing through a semiconductor due to electrons and holes are `3/4` and `1/4` respectively. If the drift velocity of electrons is `5/2` times that of holes at this temperature, then the ratio of concentration of electrons and holes is :

NEET RTN 08
A

6 : 5

B

5 : 6

C

3 : 2

D

2 : 3

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