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1			Angular deviation for the second-order maximum Need a Hint?
2			Distance of the second-order maximum from the central maximum Need a Hint?
3			Angular deviation for the second dark space from the central maximum Need a Hint?
4			Distance of the second dark space from the central maximum Need a Hint?
5			Interference fringe spacing on the screen Need a Hint?
6			Where the screen should be located relative to the slits in order to have the third-order maxima separated by 5.00 cm Need a Hint?
7			Wavelength of light that would place the third dark space at the site of the present second order maxima Need a Hint?
8			Width of the central maxima (at the base) if the slit separation is doubled Need a Hint?

Light of wavelength 6.66 × 10^-7 m is incident on a planar diffraction grating that has 5000 lines/cm and 2500 lines are illuminated by the beam of light. The resulting diffraction pattern is viewed on a screen 0.500 m away.

9			Grating spacing Need a Hint?
10			Number of diffraction images that can be observed Need a Hint?
11			Angular deviation of first-order diffraction image Need a Hint?
12			Distance on screen between first and second-order images Need a Hint?
13			Longest wavelength for which the second order can be observed Need a Hint?

A thin film of oil on water is shown in the figure below

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Air na = 1.00	Oil no = 1.25	Water nw = 1.33
	to = 2.40 × 10-7 m (the thickness of the oil film)

14			Phase change of ray 1 at the first surface Need a Hint?
15			Phase change of ray 2 at the second surface Need a Hint?
16			Wavelengths in the visible range that experience constructive interference Need a Hint?
17			Wavelengths in the visible range that experience destructive interference Need a Hint?
18			Thinnest film of this oil that can cause destructive interference for light of wavelength λ = 5.00 × 10-7 m Need a Hint?

Light of wavelength 6.00 × 10^-7 m is incident on a single slit 0.100 mm wide, and the resulting diffraction pattern is viewed on a screen 2.00 m away.

19			Angular position of the first dark space Need a Hint?
20			Distance of the first dark space from the location of the central maximum Need a Hint?
21			Width of the central maximum on the screen Need a Hint?
22			Angular deviation between the first and second dark spaces Need a Hint?
23			Approximate distance of the first secondary maximum from the central maximum Need a Hint?
24			Width of the first secondary maximum on the screen Need a Hint?
25			Where the screen should be relocated relative to the slit in order to double the width of the central maximum Need a Hint?
26			Wavelength of light that would have its first dark space at the site of the present second secondary maximum Need a Hint?
27			The amount we would have to change the slit width in order to double the width of the central maximum on the screen Need a Hint?