# A grating 1.600 cm wide has exactly 12 000 slits. The grating is used to resolve two nearly equal wavelengths in a light source: a = 440.000 nm and b = 440.936 nm. (a) How many orders of the lines

A grating 1.600 cm wide has exactly 12 000 slits. The grating is used to resolve two nearly equal wavelengths in a light source: λa = 440.000 nm and λb = 440.936 nm.

(a) How many orders of the lines can be seen with the grating?

(b) What is the angular separation θb - θa between the lines in each order?

(c) Which order best resolves the two lines? Explain.

(a) How many orders of the lines can be seen with the grating?

(b) What is the angular separation θb - θa between the lines in each order?

(c) Which order best resolves the two lines? Explain.

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## a Strategy Solve Eq 25 10 for m using 440 936 nm 90 and d 1 600 cm 12 000 slits Find t…View the full answer

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**ISBN:** 978-0077339685

2nd edition

**Authors:** Alan Giambattista, Betty Richardson, Robert Richardson

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