Global MCQ Practice

🌐 Total MCQ
🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books

Class 12 Physics (Part Ii) Chapter 10 Wave Optics Quiz 3 (25 MCQs)

Quiz Instructions

Select an option to see the correct answer instantly.

1. What is the effect of increasing the wavelength of light in a Michelson interferometer?
2. What is the function of the beam splitter in a Michelson interferometer?
3. In Newton's ring experiments, the diameter of dark rings is proportional to
4. The distance between 2 corresponding parts of a wave (example-crest to crest) is its .....
5. Two coherent monochromatic light beams of intensities I and 4I are superposed. The maximum and minimum possible intensities in the resulting beam are:
6. Mirage is a phenomenon due to:
7. When we look through rainbow glasses ..... (diffraction-slits) ..... which color is bent the least (shows up closest to the object)
8. In Young's double slit experiment, if the monochromatic source of yellow light is replaced by red light, the fringe width
9. Mark the correct options:
10. According to Huygens' principle, each point on a wavefront acts as:
11. A point source of light creates ..... wavefront
12. Two slits in YDSE have widths in the ratio 1:25. Then the ratio of maximum and minimum in the interference pattern will be
13. In single slit diffraction experiment, on moving sreen away from the slit angular width of fringes would
14. Light of wavelength 589.3nm is incident normally on the slit of width 0.1mm. What will be the angular width of the central diffraction maximum at a distance of 1m from the slit
15. ..... principle says that each point of the wavefront is the source of a secondary disturbance and the wavelets emanating from these points spread out in all directions with the speed of the wave.
16. The human eye can readily detect wavelengths from about 400 nm to 700 nm. If white light illuminates a diffraction grating having 750 lines/mm, over what range of angles does the visible m=1 spectrum extend?
17. Light propagates rectilinearly, due to
18. The wave nature of light can be experimentally confirmed by observing:
19. The Rayleigh criterion for resolving power for a circular aperture is $\theta=1.22\\frac{\lambda}{D}$ $\times10^{12}$ $\times10^9$
20. Which of the following is essential for sustained interference between two waves?
21. A slit of width 0.1 mm is illuminated by a light of wavelength 5000 A$^{0}$ . The angle of diffraction for third minimum is
22. The characteristics of wave which does not change after refraction is
23. A diffraction grating that has 4000 lines per centimetres is illuminated at normal incidence with white light ( wavelength range of 400 nm to 700 nm). How many orders of spectra can one observe in the transmitted light?
24. Monochromatic coherent light shines through apair of slits. If the wavelength of the light isdecreased, which of the following statements is/aretrue of the resulting interference pattern?I. The distance between the maxima stays thesameII. The distance between the maxima decreasesIII. The distance between the minima stays thesameIV. The distance between the minima decreases.
25. In YDSE fringe width was found to be 0.4 mm . If whole apparatus is immersed in water of $\mu$= 4/3, new fringe width in mm is
🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books