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Physics with MasteringPhysics | 4th Edition | ISBN: 9780321541635 | Authors: James S. Walker
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IP A two-slit experiment with slits separated by 48.0 ×

Chapter 28, Problem 19P

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QUESTION:

Problem 19P

IP A two-slit experiment with slits separated by 48.0 × 10−5 m produces a second-order maximum at an angle of 0.0990°.

(a) Find the wavelength of the light used in this experiment.

(b) If the slit separation is increased but the second-order maximum stays at the same angle, does the wavelength increase, decrease, or stay the same? Explain.

(c) Calculate the wavelength for a slit separation of 68.0 × 10−5 m.

Questions & Answers

QUESTION:

Problem 19P

IP A two-slit experiment with slits separated by 48.0 × 10−5 m produces a second-order maximum at an angle of 0.0990°.

(a) Find the wavelength of the light used in this experiment.

(b) If the slit separation is increased but the second-order maximum stays at the same angle, does the wavelength increase, decrease, or stay the same? Explain.

(c) Calculate the wavelength for a slit separation of 68.0 × 10−5 m.

ANSWER:

Solution 19P

Step 1 of 4

Here, we have to calculate the wavelength and its variation according to the change in slit separation.

The equation for the maxima,

Where,

              - Wavelength

              -  Slit separation

              - Angular separation

a)

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