If the intensity due to each light wave at point 'O' is I₀ then the resultant intensity at point 'O' will be-
(A) Zero (B) $2 I_{0} (1 + \cos \frac{40 π}{9})$ (C) 3I₀ (D)I₀

Question

If the intensity due to each light wave at point 'O' is
I0 then the resultant intensity at point 'O' will
be-
(A) Zero (B) 2 I 0   1 + cos 40 π 9 (C)
3â€‹I0 (D) I0

Ravi Gupta · Accepted Answer

Dear Student
Kindly find the answer of your asked query

Intensity of each light is I0Resultant intensity at point o is IRIR=I1+I2+2I1I2cosϕsince S1O=S2O so there is no path differenc, therefore no phase difference between two waves hence ϕ=0IR= I0+ I0+2 I0 I0cos0IR=4I0So this should be teh correct answer

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If the intensity due to each light wave at point 'O' is I0 then the resultant intensity at point 'O' will be- (A) Zero (B) 2 I 0 1 + cos 40 π 9 (C) 3​I0 (D) I0

If the intensity due to each light wave at point 'O' is I₀ then the resultant intensity at point 'O' will be-
(A) Zero (B) $2 I_{0} (1 + \cos \frac{40 π}{9})$ (C) 3I₀ (D)I₀