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प्रश्न
Two light beams of intensities in the ratio of 9 : 4 are allowed to interfere. The ratio of the intensity of maxima and minima ______.
पर्याय
2 : 3
16 : 81
25 : 169
25 : 1
MCQ
रिकाम्या जागा भरा
उत्तर
Two light beams of intensities in the ratio of 9 : 4 are allowed to interfere. The ratio of the intensity of maxima and minima 25 : 1.
Explanation:
`"I"_"max"/"I"_"min" = ((sqrt"I"_1+sqrt"I"_2)^2)/((sqrt"I"_1-sqrt"I"_2)^2)`
= `((sqrt9+sqrt4)^2)/((sqrt9-sqrt4)^2)`
= `25/1`
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