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A substance of mass M kg requires a powe...

A substance of mass M kg requires a power input of P wants to remain in the molten state at its melting point. When the power source is turned off, the sample completely solidifies in time t seconds. The latent heat of fusion of the substance is …….

A

`M/(Pt)`

B

`(Pt)/M`

C

`PtM`

D

Pt

Text Solution

Verified by Experts

The correct Answer is:
B
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FIITJEE-HEAT AND TEMPERATURE-ASSIGNMENT PROBLEMS (OBJECTIVE) (LEVEL-I)
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  5. A block of ice -10^(@)C is slowly heated and converted to steam at 100...

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  6. When an ideal diatomic gas is heated at constant pressure, the fractio...

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  7. If the density of a gas at NTP is 1.3mg//cm^(3) and velocity of sound ...

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  8. The velocities of three molecules are 3v, 4v and 5v. Calculate their r...

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  9. If the average kinetic energy of gas molecule at 27^(@)C is 6.21xx10^(...

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  10. A substance of mass M kg requires a power input of P wants to remain i...

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  11. The coefficient of linear expansion of a rod is alpha and its length i...

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  12. Two idential container joined by a small pipe initially contain the sa...

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  13. A cyclic process ABCD is shown in the figure P-V diagram. Which of the...

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  14. A spherical black body with radius 12 cm radiates 640 w power at 500 K...

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  15. m grams of a gas of molecules weight M is flowing in an insulated tub...

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  16. Two metallic spheres S1 and S2 are made of the same material and have ...

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  17. Two perfect gases at absolute temperature T(1) and T(2) are mixed. The...

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  18. A pendulum clock keeps correct time at 0^(@)C. Its mean coefficient of...

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  19. Two straight metallic strips each of thickness t and length l are rive...

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  20. The radius of a ring is R and its coefficient of linear expansion is a...

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