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CBSE Class 12-science Answered

State the reason, why two independent sources of light cannot be considered as coherent sources.
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
answered-by-expert Expert Answer
Coherent sources are defined as the sources in the which initial phase difference remains constant. In the case of two independent sources, the initial phase difference cannot remain constant because light is emitted due to millions of atoms and their number goes on changing in a quite random manner.
Answered by | 04 Jun, 2014, 03:23: PM
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CBSE 12-science - Physics
Deduce the theory of Fresnel Biprism for the determination of wavelength of monochromatic light .    
Asked by pramanikachyut33 | 30 Jun, 2021, 09:11: AM
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CBSE 12-science - Physics
What are coherent sources? Can two identical and independent sodium lamps act as coherent sources? Give reason for you answer.
Asked by Topperlearning User | 12 Jun, 2014, 07:02: AM
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CBSE 12-science - Physics
Write two essential conditions for obtaining two coherent sources of light.
Asked by Topperlearning User | 12 Jun, 2014, 07:17: AM
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CBSE 12-science - Physics
Two coherent light beams are made to interfere and produce interference fringes. If the intensity of one beam is twice that of the other, then what will be the visibility of fringes?
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
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CBSE 12-science - Physics
Plot an intensity on screen vs. phase difference graph for the interference pattern obtained in Young's double slit experiment, when: a. Two sources are coherent with each other. b. Two sources are coherent with each other, but a slit against one of the sources is closed.c. Two sources are incoherent with each other
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
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CBSE 12-science - Physics
How can coherent sources be obtained?
Asked by Topperlearning User | 12 Jun, 2014, 07:20: AM
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CBSE 12-science - Physics
Explain the methods of producing coherent sources?
Asked by Topperlearning User | 12 Jun, 2014, 07:28: AM
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CBSE 12-science - Physics
Rays from the coherent sources reach certain point with a path difference of (3λ/2). will the point be dark or bright?
Asked by Topperlearning User | 08 Jul, 2014, 05:03: PM
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CBSE 12-science - Physics
How do you obtain coherent sources in Fresnel's biprism?
Asked by Topperlearning User | 12 Jun, 2014, 07:47: AM
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