Homework Help: PPPPPhysicssssss

Posted by BOBert on Thursday, March 31, 2011 at 10:01am.

Two lasers are shining on a double slit, with slit separation d. Laser 1 has a wavelength of d/20, whereas laser 2 has a wavelength of d/15. The lasers produce separate interference patterns on a screen a distance 4.90m away from the slits.

1. What is the distance Δy_max-max between the first maxima (on the same side of the central maximum) of the two patterns?

2. What is the distance Δy_max-min between the second maximum of laser 1 and the third minimum of laser 2, on the same side of the central maximum?

PPPPPhysicssssss - bobpursley, Thursday, March 31, 2011 at 10:18am
What is your question here? A standard equztion on angles, then a trig triangle to figure distance.
PPPPPhysicssssss - elliot, Monday, May 28, 2012 at 5:03am
what was your answer? :)
PPPPPhysicssssss - nicholas, Monday, May 28, 2012 at 5:04am
kinda need it.......... assignment is due in 15 minutes....
PPPPPhysicssssss - brett, Monday, May 28, 2012 at 5:08am
answer is 9.33×10−2 m
PPPPPhysicssssss - bob, Thursday, January 24, 2013 at 11:52pm
and the answer to the second part??

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