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The earth radiates in the infra-red regi...

The earth radiates in the infra-red region of the spectrum. The spectrum is correctly given by

A

Planck's law of radiation

B

Stefan's Law of radiation

C

Rayleigh Jeans law

D

Wien's law

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SL ARORA-Thermal Properties of Matter-Exercise
  1. Two spheres of the same material have radii 1m and 4m and temperatures...

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  2. Assuming the Sun to be a spherical body of radius R at a temperature o...

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  3. The earth radiates in the infra-red region of the spectrum. The spectr...

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  4. A radiation of energy E falls normally on a perfectly reflecting surfa...

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  5. A copper ball of mass 100 g is at a temperature T. it is dropped in a ...

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  6. An external pressure P is applied on a cube at 0^(@)C so that it is eq...

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  7. A pendulum clock loses 12s a day if the temperature is 40^@C and gains...

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  8. A simple pendulum made of bob of mass m and a metallic wire of neglig...

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  9. The quantity of heat required to change the unit mass of a solid subst...

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  10. When a solid is heated, it turns directly into a gas. This process is ...

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  11. A constant pressure air thermometer gave a reading of 47.5 units of vo...

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  12. A non-conducting body floats in a liquid at 20^(@)C. with 2//3 of its ...

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  13. Calorimeters are made of which of the following

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  14. Hailstone at 0^@C from a height of 1 km on an insulating surface conve...

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  15. Statement I: The bulb of one thermometer is spherical while that of th...

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  16. On a cold morning, a metal surface will feel colder to touch than a wo...

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  17. Assertion : Woollen clothes keep the body warm in winter Reason : Ai...

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  18. Heat travels through vaccum by

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  19. The amount of radiation emitted by a perfectly black body is proportio...

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  20. The unit of thermal conductivity is :

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