Q 1359078814.     Time constant of a `RC` circuit is `2/ln2 s`. Capacitor is discharged at time `t = 0`. The ratio of charge on the capacitor at time `t = 2s` and `t = 6s` is
magnetic


A

3 : 1

B

8 : 1

C

4 : 1

D

2 : 1

HINT

`Q=CV(1-e^(-t/(RC)))`
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