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On observing light from three different ...

On observing light from three different stars `P`, `Q` and `R`, it was found that intensity of violet colour is maximum in the spectrum of `P`, the intensity of green colour is maximum in the spectrum of `R` and the intensity of red colour is maximum in the spectrum of `Q`. if `T_(P)`, `T_(Q)` and `T_(R)` are respective absolute temperature of `P`, `Q` and `R`. then it can be concluded from the above observation that

A

`T_p gt T_R gt T_Q`

B

`T_P lt T_R ltT_Q`

C

`T_P ltT_Q ltT_R`

D

`T_P gt T_QgtT_R`

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The correct Answer is:
A
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MOTION-HEAT TRANSFER & THERMAL EXPANSION -Exercise - 3 Section-A
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  2. On a new scale of temperature (which is linear) and called the W scale...

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  3. The two ends of a rod of length L and a uniform cross-sectional area A...

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  4. A black body at 227^(@)C radiates heat at the rate of 7 cal cm^(-2) s...

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  5. A cylindrical metallic rod in thermal contact with two reservoirs of h...

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  8. If the radius of a star is R and it acts as a black body, what would b...

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  9. Assertion (A) A thermocouple refrigerator is based on the Peltier effe...

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

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  11. Two stars A and B of surface area Sa and Sb & temperature Ta and Tb gl...

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  12. Certain quantity of water cools from 70^(@)C to 60^(@)C in the first 5...

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  13. The two ends of a metal rod are maintained at temperatures 100^(@)C an...

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

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  15. The value of coefficient of volume expansion of glycerin is 5 xx 10^(-...

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  16. A body cool from 90^@C to 70^@C in 10 minutes if temperature of surrou...

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  17. A black body is at a temperature of 5760 K. The energy of radiation em...

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  18. Coefficient of liner expansion of brass and steel rods are alpha(1) an...

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