Homework Help: Physics

Posted by Angel on Tuesday, April 10, 2012 at 6:23pm.

Light falls on a double slit with slit separation
of 2.19 × 10
−6 m, and the ﬁrst bright fringe is
seen at an angle of 12.7
◦
relative to the central
maximum.
What is the wavelength of the light?
Answer in units of nm

Can the person post the steps and equations.

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