Interference and Diffraction MCQs Quiz Multiple Choice Questions & Answers

Test Your Skills in Interference and Diffraction Quiz Online

Dive into the fascinating phenomena of Interference and Diffraction with our comprehensive collection of multiple-choice questions and answers. Whether you're a student studying wave optics, a researcher exploring light behavior, or simply intrigued by the wave nature of light, our meticulously curated selection covers a wide range of topics. Explore fundamental concepts such as interference patterns, diffraction gratings, the double-slit experiment, and practical applications in microscopy and spectroscopy. With our user-friendly interface and detailed explanations, mastering the complexities of interference and diffraction has never been more engaging and accessible. Start your journey towards understanding the wave nature of light and its profound implications in modern science today!

Interference and Diffraction Questions with Answers

1. Colors in thin films are because of

2. Diffraction due to circular aperture If a light passes through a small pinhole, and incident on a screen. What will be observed on the screen?

3. Diffraction is special type of

4. Extended source is needed in

5. Find the maximum value of resolving power of a grating 3 cm wide having 5000 lines per cm, if the wavelength of light used is 5890 Ao.

6. For all transparent material substances, the index of refraction

7. Fraunhofer diffraction at a Plane Grating. What is the meaning of grating element for a diffraction grating?A It is the width of a single slit

8. Fraunhofer diffraction is observed when

9. Fresnels type diffraction is observed when

10. Fringe spacing is defined as the distance between two Consecutive

11. How the intensity of secondary maxima varies in case of Fraunhofer diffraction pattern for single slit?

12. If we narrow the distance between two slits in Youngs experiment the fringes width

13. If you look perpendicular at thin film and move yourself away from the film (staying perpendicular to the film), you will notice

14. In a longitudinal wave

15. In a Youngs double-slit experiment the center of a bright fringe occurs wherever waves from the slits differ in the distance they travel by a multiple of

16. In case of thin film of non-uniform thickness, when illuminated with white light, the film appears colored. This is due to change of what factor?

17. In diffraction Fraunhofer diffraction pattern due to single slit central maxima is formed at center because

18. In diffraction pattern of monochromatic light the bright bands formed are

19. In Fraunhofer diffraction pattern for single slit, a central maximum is obtained when angle of diffraction q is equal to zero. What it actually indicates?

20. In Fraunhofer diffraction wave front used is

21. In Fraunhofer diffraction, the incident wave front should be

22. In Fresnel diffraction

23. In interference experiment, by keeping all other parameters constant, if you see the thin film interference from different angles, you will observe

24. In interference experiment, monochromatic light is replaced by white light, we will see

25. In Michelson interferometer semi silvered mirror is used to obtain

26. In Michelson s interferometer 100 fringes cross the field view when the movable mirror is displaced through 0.0248 mm. Calculate the wavelength of monochromatic light used

27. In Newtons ring experiment, the diameter of the 15 th ring was found to be 0.590 and that of the 5th ring was 0.336 cm. If the radius of Plano convex lens is 100 cm, compute the wavelength of light used

28. In Newtons Ring experiments, the diameter of bright rings is proportional to

29. In Newtons Ring experiments, the diameter of dark rings is proportional to

30. In Newtons rings experiment, if monochromatic source of light is replaced by another monochromatic source of higher wavelength. What will be the effect on radius (or diameter)?

31. In Newtons rings experiment, if we reduce the radius of curvature of Plano convex lens to zero, what will be effect on Newtons rings?

32. In Newtons rings experiment, if we reduce the radius of curvature of PlanoConvex lens to zero, what will be effect on Newtons rings?

33. In Newtons rings the central spot is

34. In plane transmission grating, the angle of diffraction for second order maxima for wavelength 5 x 10-5 cm is 30 degree. Calculate the number of lines in one centimeter of the grating surface

35. In reference with antireflection coating which of the following statement is true?

36. In reflected light the central fringes of Newtons ring is

37. In thin film of wedge shaped, by keeping all other parameters constant, if only wavelength of incident light is increased. What will be the effect on bandwidth?

38. In wedge shaped film the interference pattern has nature

39. Interference in thin film is mainly because of

40. Interference in thin film is mainly because of

41. Interference of light is evidence that

42. Interference pattern is observed in wedge-shaped film and bandwidth is noted. Now the angle of wedge is reduced to zero. What will be the effect on Bandwidth?

43. Interference pattern is observed in wedge-shaped film and bandwidth is noted. Now the angle of wedge is reduced. What will be the effect on bandwidth?

44. Interference pattern is observed in wedge-shaped film and bandwidth is noted. Now the thin film is replaced by the film of higher refractive index. What will be the effect on bandwidth?

45. Interference pattern is observed in wedge-shaped film for monochromatic light. Now monochromatic light is replaced by white light. What will be the effect on interference pattern?

46. Interference pattern is observed in wedge-shaped film for monochromatic light. Now monochromatic light is replaced by white light. What will be the effect on interference pattern?

47. Light enters air from water. The angle of refraction will be

48. Light is

49. Light travels fastest

50. Newtons light illustrate the phenomenon of