If an interference pattern has maximum and minimum intensities in 36: 1 ratio then what will be t...

If an interference pattern has maximum and minimum intensities in 36: 1 ratio then what will be the ratio of amplitudes
[AFMC 2002; Odisha JEE 2011;
Similar CPMT 1984; CBSE PMT 1993]
(a) 5: 7
(b) 7: 4
(c) 4: 7
(d) 7: 5

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