ECAT Pre Engineering Physics Chapter 10 MCQ Test With Answer

Top Scorers Of Physics ECAT Pre Engineering Chapter 10 Optical Instruments MCQ`s Test

Sr.#	Question	Answer
1	The speed of the secondary wavelets as mentioned in Huygen's principle is ________ the speed of propagation of the wave itself	A. Equal to B. Greater than C. Smaller than D. None of these
2	Laws of reflection and refraction can also be explained by	A. Particle nature of light B. Quantum nature of light C. Wave nature of light D. Complex nature of light
3	Speed of light in vacuum depends upon	A. Frequency B. Wavelength C. Amplitude D. None of these
4	The property of light which does not change with the nature of the medium is	A. Frequency B. Amplitude C. Wavelength D. None of these
5	Which one of the followings can act approximately as a source of monochromatic light	A. Neon lamp B. Fluorescent tube C. Sodium lamp D. None of these
6	Electromagnetic waves transport	A. Energy only B. Momentum only C. Both A and B D. None is correct
7	Huygen principle is used to determine	A. Speed of light B. Location of wavefront C. About polarized and unpolarized light D. None of them
8	Wavelength of red colour as compared to that of violet colour is	A. Smaller B. Longer C. Equal D. None of these
9	To observe interference of light, the condition, which must be met with is that the sources must be	A. Monochromatic B. Phase coherent C. Both of above D. None of above
10	The wave nature of light was proposed by	A. Newton B. Thomas Young C. Huygen D. None of these