I really don\'t understand this. Please help The graph shows the light intensity

Question

I really don't understand this. Please help

The graph shows the light intensity on a viewing screen during a double-slit interference experiment with green light. Complete the following statement: If the distance to the screen is increased, the peaks of the intensity pattern will... get farther apart get closer together stay the same The graph shows the light intensity on a viewing screen during a double-slit interference experiment with green light. Complete the following statement: If the spacing between the slits is increased, the peaks of the intensity pattern will... get farther apart get closer together stay the same The graph shows the light intensity on a viewing screen during a double-slit interference experiment with green light. Complete the following statement: If the wavelength of the light is increased, the peaks of the intensity pattern will... get farther apart get closer together stay the same

Explanation / Answer

Y = mLR/d

where m = order

L = wavelength

R = distynce from slit to screen

d = slit width

also UI = Io cos^2 theta

s0 a. R increases, Y also increases so answer is decrases

b. if L is increased, Y also inceases

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