Two coherent sources of different intensities send waves which interfere. The ratio of maximum intensity to the minimum intensity is 25. The intensities of the sources are in the ratio
(a) 25 : 1(b) 5 : 1(c) 9 : 4(d) 25 : 16
Answers
Answered by
13
answer is attached to the file..
answer is option c
thank you
Attachments:
Answered by
8
Let Maximum intensity be I .
Let Minimum intensity be i .
Let the original intensities be I₁ and I₂ .
I : i = ( √I₁ + √I₂ )² : ( √I₁ - √I₂ )²
= > 5 : 1 = √I₁ + √I₂ : √I₁ - √I₂
By componendo and dividendo :
= > ( 5 + 1 )/( 5 - 1 ) = 2 √I₁ : 2 √I₂
= > 6 / 4 = √I₁ : √I₂
= > I₁ : I₂ = 36/16
= > I₁ : I₂ = 9 : 4
ANSWER :
OPTION C
Similar questions
Chemistry,
6 months ago
English,
6 months ago
Business Studies,
6 months ago
Biology,
1 year ago
Math,
1 year ago