Mathematical Problems

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MATHEMATICAL PROBLEMS

Optics

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QUESTION 01

• In young’s experiment separation between two

slits is 1*10-4m and the distance of the screen

from the plane of the slit is 0.50m . What is the

distance from the central bright point to the first

bright point in the screen. (λ=5000* 10-10)

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QUESTION 02

• The phase difference between two point in a

wave is π/2. What is the path difference

between these two points?

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QUESTION 03

• Interference fringes are produced on a screen kept 1m away from two slits 0.4mm apart. The wavelength of the light used is 5000A.Find the distance between the centers of two consecutive bright and dark fringe.

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QUESTION 04

• In a Newton’s ring experiment the diameter of the 15^th ring was found to be 0.59cm and that of the 5^th ring was 0.336cm,if the radius of the Plano convex lens is 100cm , calculate the wavelength of light used.

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QUESTION:05

• Interference fringes are produced at a distance 1.5m away by two slits situated at 0.03cm apart from each

other. The fourth bright fringe is obtained 1cm away from the central maxima. Find the wavelength of light.

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QUESTION:06

• Two narrow slits are 4mm apart. When they are illuminated by a monochromatic light wave of

wavelength 5890A then find the width of the fringe produced on the screen at 0.8m away.

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CLASS TEST:03

• Theory of light, types of light, reflection, refracton, interference, diffraction, polarization.

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Mathematical Problems