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 locus of all the points in the same phase of vibration is called	A. Wave pocket B. Wavefront C. Wave number D. None of these
2	When the source of light is at very large distance, the shape of wavefront is	A. Spherical B. Cylindrical C. Plane D. None of these
3	The wave nature of light was proposed by	A. Newton B. Thomas Young C. Huygen D. None of these
4	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
5	Light waves are	A. Transverse waves B. Longitudinal waves C. Compressional D. None of them wave
6	In case of constructive interference of two waves, the amplitude of the resultant wave is __________ either of the waves	A. Greater than B. Equal to C. Smaller than D. None of these
7	A line which represents the direction of travel of a wave is known as	A. Spherical wavefront B. Locus C. Ray D. Either B or C
8	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
9	Huygen's principle states that	A. Light travels in straight line B. Light has dual nature C. Either of these D. None of these
10	The terms phase difference and path difference are	A. Same B. Different C. Equal D. none of these