Question

24. In an amplitude modulated wave the maximum
and minimum amplitudes are 3V and IV respectively,
The modulation index is
(A) 25%
(B) 30%
(C) 50%
(D) 60%
25. The half life of a radioactive substance is 2 days.
16 gm of the substance decays to lgm after
(A) 4 days
(B) 5 days
(C) 6 days
(D) 8 days​

Answer 1

Answer:

I think

1. 25%

2. 4 days

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