HSC Science (Computer Science) 12th Board ExamMaharashtra State Board
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# Distinguish Between the Phenomenon of Interference and Diffraction of Light. - HSC Science (Computer Science) 12th Board Exam - Physics

#### Question

Distinguish between the phenomenon of interference and diffraction of light.

#### Solution

 No Interference Diffraction 1 Interference is due to superposition ofwaves from different wavefronts. Diffraction is due to waves coming fromdifferent parts of the same wavefront. 2 All bright fringes are of equal intensity Intensity decreases with the order ofbright band. 3 Minimum intensity may be zero. Minimum intensity is not zero. 4 Width of the central maximum is same as that of other bright fringes i.e fringe width is same for all fringes including centralmaxima. Width of central maximum is broaderthan other maxima and it is double thefringe width. 5 The waves emitted by two coherentsources travel in straight line. The light waves are bend at the corners and displaced from their straight line path. 6 The resolving  power of an opticalinstrument does  not depend on the phenomenon of interference. The resolving power of an optical instrument depends on the phenomenonof diffraction 7

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#### APPEARS IN

2016-2017 (March) (with solutions)
Question 6.1 | 2.00 marks

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Solution Distinguish Between the Phenomenon of Interference and Diffraction of Light. Concept: Interference of Light.
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