Question

In: Physics

1) The light shining on a diffraction grating has a wavelength of 477 nm (in vacuum)....

1) The light shining on a diffraction grating has a wavelength of 477 nm (in vacuum). The grating produces a second-order bright fringe whose position is defined by an angle of 9.71°. How many lines per centimeter does the grating have?

2) The wavelength of the laser beam used in a compact disc player is 566 nm. Suppose that a diffraction grating produces first-order tracking beams that are 1.1 mm apart at a distance of 3.1 mm from the grating. Estimate the spacing between the slits of the grating.

Solutions

Expert Solution

We know if a light of wavelength falls on a diffraction grating, the condition for principal maxima is given by

N=1/d

Using this formula we can can find number of lines per cm.

genius_generous answered 2 months ago
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