Physics Monochromatic Light Discrete

[TheJourney]

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Monochromatic light of a certain wavelength falls on a narrow slit. On a screen a certain distance away, the distance between the second minimum and the central maximum is 2 cm. What would happen to the spacing between the two if the wavelength of the radiation were increased?

A) It would depend on whether the new wavelength is an odd or even multiple of the old.
B) It would remain unchanged.
C) It would decrease.
D) It would increased.

The correct answer choice is D. I guessed it correctly. This seems like a really easy discrete and I take I should read the chapter covering Young's double slit experiment.

Did anyone find a relatively simple or efficient method at mastering this topic or answering questions regarding it?

 

[DrknoSDN]

Double slit is related to interference. This is about the single slit diffraction pattern.

Hyperphysics is a good resource. http://hyperphysics.phy-astr.gsu.edu/hbase/phyopt/sinslitd.html#c1

 

[Sammy1024]

I looked at the question to try it out and I thought of the double slit equation. I couldn't remember most of it but I remember you multiply m and the wavelength together so increasing wavelength would increase the distance. I would suggest just taking a peak at the equations every now and then. Gl! :]