Differentiate between interference and diffraction of light
Differentiate between Fresnel and Fraunhofer diffraction.
Illustrate the formation of Newton’s rings
Explain the principle of superposition of waves and discuss different cases in it.
Illustrate diffraction grating with the help of a neat diagram.
In Young’s double-slit experiment the displacement of two waves which superimposed are y1 = a1 sin(ωt) and y2 = a2 sin(ωt + φ). Find the maximum and minimum intensities.
Derive an expression for condition for path difference of bright fringe in Newton rings.
Explain Young’s double slit experiment with neat diagram and arrive at an expression for its condition for maximum intensity.
In Newton’s ring experiment show that the diameter of the dark ring directly proportional to the square root of the natural number.
Discuss the theory of Newton’s ring by reflected light and obtained the conditions for bright and dark ring. Why Newton’s rings are circular.
Explain the Young’s Double Slit experiment with diagram.
The radius of 5th and 10th Newton’s ring was found to be 1.5 mm and 4 mm. If the radius of curvature of plano-convex plate is 90 cm, calculate wavelength of monochromatic light.
The distance between the slits in a double-slit experiment is 3 mm, and the slits are 2m apart from the screen. On the screen, two interference patterns can be observed, one caused by light with a wavelength of 480 nm and the other by light with a wavelength of 600 nm. What is the distance between the fifth-order bright fringes of the two interference patterns on the screen?
In a Newton’s ring experiment the diameter of 9th dark ring is 0.38cm when a light of wavelength 54690A used normally. Find the diameter of 18th dark ring.
Find the largest wavelength of light falling on double slits separated by 1.20 µm for which there is a first-order maximum. Is this in the visible part of the spectrum?
A grating containing 4000 slits per centimeter is illuminated with a monochromatic light and produces the second-order bright line at a 30° angle. What is the wavelength of the light used? (1 Å = 10-10 m)