1078_Physics ProblemsTechnical Physics

1078_Physics ProblemsTechnical Physics - Chapter 38 P38.33...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 38 419 P38.33 d = × = 100 10 250 400 10 4000 3 6 . . mmm lines mm m n m dm m d sin sin θλ θ λ =⇒ = (a) The number of times a complete order is seen is the same as the number of orders in which the long wavelength limit is visible. m d max max sin sin . . == ° = 900 700 571 nm nm bg or 5 orders is the maximum . (b) The highest order in which the violet end of the spectrum can be seen is: m d max max sin sin . . ° = 400 10 0 nm nm or 10 orders in the short-wavelength region . *P38.34 (a) The several narrow parallel slits make a diffraction grating. The zeroth- and first- order maxima are separated according to d sin = 1 af sin . × × d 632 8 10 9 3 m 1.2 10 m sin . . 1 0 000 527 0 000 527 rad yL = tan . . . 140 0000527 0738 m m . FIG. P38.34 (b) Many equally spaced transparent lines appear on the film. It is itself a diffraction grating. When the same light is sent through the film, it produces interference maxima separated according to d sin = 1 sin . . × × = d 632 8 10 0000857 9 3 m 0.738 10 m = tan . . . 120 m m a f An image of the original set of slits appears on the screen. If the screen is removed, light
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 12/14/2011 for the course PHY 203 taught by Professor Staff during the Fall '11 term at Indiana State University .

Ask a homework question - tutors are online