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interfere. Prove that in the interference pattern

(Imax - Imin)/(Imax + Imin )= 2√a/(1+a)

fringes are formed by reflection from a thin

air wedge. When viewed at 90°, 8 fringes are

observed in a distance of 0.8 cm. Calculate

the angle of the wedge.

obliquely on a parallel thin glass film. Draw

a diagram to show the amplitude of

successive rays in multiple reflection and

refraction.

illuminated by a monochromatic light of

wavelength 5893 A. Calculate the width of

the fringes obtained on a screen placed at a

distance of 45 cm from the slits.

limited beam (X = 600 nm) of diameter

3 x 10 - 3m. Calculate the diameter of the

light patch produced on the surface of moon

at a distance of 376 >: 103 km from the Earth.

Assume that scattering in Earth's

atmosphere can be ignored.

limited beam (X = 600 nm) of diameter

3 x 10 - 3m. Calculate the diameter of the

light patch produced on the surface of moon

at a distance of 376 >: 103 km from the Earth.

Assume that scattering in Earth's

atmosphere can be ignored.

angle subtended at the hologram by the

signal and the reference beam is 15°, what

is the wave length of light used which

produces fringes separated by a distance

1.8micrometer?

observed for the star Betelgeuse that the

fringes disappear when the distance

between movable mirrors is 65 cm.

Assuming l. = 6 x 10 ^(—5)cm, calculate the

angular diameter of the star.