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Fraunhoffer lines in solar spectrum can ...

Fraunhoffer lines in solar spectrum can be cited as an example of

A

Stefan's law

B

Kirchoff's law

C

Wien's law

D

Plank's law

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The correct Answer is:
B
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AAKASH SERIES-THERMAL PROPERTIES OF MATTER-EXERCISE-IA
  1. In a Thermos flask, heat losses due to

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  2. A cup of hot tea on a metal table in a room loses heat by

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  3. Fraunhoffer lines in solar spectrum can be cited as an example of

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  4. A sphere, a cube and circular plate of same material and same mass are...

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  5. A Blackbody, a Whitebody, A Bluebody and a Red coloured body are heate...

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  6. Rate of cooling (d theta)/(dt) depends upon

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  7. On observing light from three different stars P, Q and R, it was found...

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  8. A piece of iron is heated in a flame. It first becomes dull red then b...

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  9. If rate of heat loss ((dQ)/(dt)) of two bodies of different masses are...

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  10. Ratio of rate of fall of heat to rate of fall of temperature of a body...

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  11. A beaker full of hot water is kept in a room. It cools from 80^(@)C to...

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  12. Two spheres of radii r(1)andr(2) have densities rho(1)andrho(2) and sp...

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  13. Newton's law of cooling is applicable when

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  14. According to Newton's law of cooling, the rate of cooling of a body is...

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  15. A solid at temperature T(1) is kept in an evacuated chamber at tempera...

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  16. The thermal radiation emitted by a body is proportional to T^(n) where...

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  17. Newton's law of cooling is a special case of

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  18. A hot liquid is kept in a big room. The logarithm of the numerical val...

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  19. One end of a metal rod is dipped in boiling water and the other is dip...

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  20. In summer, a mild wind is often found on the shore of a calm river. Th...

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