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Mention the conditions for the two sourc...

Mention the conditions for the two sources to be coherent.

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Assertion: For two sources to be coherent phase difference between two waves at all points should be same. Reason: Two different light sources are never coherent.

XII BOARDS PREVIOUS YEAR-QUESTION PAPER 2022 SET - 2-SECTION B
  1. Differentiate between nuclear fission and nuclear fusion.

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  2. Deuterium undergoes fusion as per the reaction : ""(1)^(2)H+""(1)^(2...

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  3. In Geiger-Marsden experiment, calculate the distance of closest approa...

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  4. If the above experiment is repeated with a proton of the same energy, ...

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  5. The resistance of p-n junction is low when forward biased and is high ...

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  6. Answer the following, giving reason : Doping of intrinsic semiconduc...

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  7. Why are photodiodes used preferably in reverse bias condition?

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  8. The interference pattern is not observed in Young's double slit experi...

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  9. Mention the conditions for the two sources to be coherent.

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  10. What is the effect on the interference pattern in a Young's double sli...

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  11. The wavelength of the waves associated with a particle having kinetic ...

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  12. Draw a labelled ray diagram showing the formation of the image at infi...

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  13. A telescope consists of an objective of focal length 150 cm and an eye...

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  14. (a) Draw a labelled ray diagram showing the formation of a final image...

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  15. A small object is placed at a distance of 3.0 cm from a magnifier of f...

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  16. Identify electromagnetic waves which : (i) are used in radar system....

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  17. A plane wavefront is propagating from a rarer into a denser medium. Us...

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  18. The figure shows a water column BCFE surrounded by two media 1 and 3 o...

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