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In this lesson, we will learn how to calculate the light intensities of different wavelengths at variable angles relative to the transmission axis of multiple slits.
For a three-slit interference pattern, find the ratio of
the peak intensities of a secondary maximum to a principal
Eight slits equally separated by 0.149 mm
are uniformly illuminated by a monochromatic light at
What is the angular width of the central principal maximum on a screen 2.35 m away?
Light of wavelength 500 nm falls normally on 50
slits that are
mm wide and spaced
How many interference fringes lie
in the central peak of the diffraction pattern?
Ten narrow slits are equally spaced 0.25 mm apart
and illuminated with yellow light of wavelength 580 nm.
What is the angular position of the third principal maximum?
What is the angular position of the fourth principal maximum?
What is the separation of the third and fourth principal maxima on a screen
2.0 m from the slits?
The angular width of the central fringe of the
interference pattern of some slits illuminated by 730 nm
light varies as the number of slits is varied.
Find the angular width when 25 slits per millimeter are used.
Find the angular width when 55 slits per millimeter are used.
A monochromatic light of frequency
Hz falls on eight slits separated from each other by 0.038 mm.
What is the distance between the first-order and third-order maxima of the interference pattern produced on a screen that is 1.3 m from the slits?
slits equally separated from each other by 0.132 mm are uniformly illuminated
by a monochromatic light of wavelength 534 nm. What is the ratio
of the intensity of a secondary maximum to that of the principal maximum in the
interference pattern produced?
narrow slits are equally spaced and separated by 0.290 mm. The slits are
illuminated by blue light of wavelength 400 nm. The twenty-fifth secondary
maximum of the interference pattern produced is observed.
What is the angular position of this maximum?
is the ratio of the peak intensity of this maximum to that of the primary maximum?
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