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Two spheres of the same radius are made ...

Two spheres of the same radius are made from the same material. One is hollow and the other is solid. If they are heated together from `20^@C" to "100^@C`.

A

both will expand equally

B

hollow sphere will expand more

C

solid sphere will expand more

D

the relative expansion of solid and hollow sphere depends on the material of sphere

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The correct Answer is:
A
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MOTION-HEAT TRANSFER & THERMAL EXPANSION -EXERCISE - 1
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  2. The wavelength of maximum emitted energy of a body at 700 K is 4.08 mu...

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  3. The spectral emissive power of a black body at a temperature of 6000K ...

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  4. Temperature of an ordinary bulb is 3000^@K. At what wave length will i...

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  5. If for a black body the graph of change is emissive power at different...

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  6. An iron ball is heated. The percentage increase will be the largest in...

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  7. Two holes of unequal diameters d(1) and d(2)(d(1)gt d(2)) are cut in m...

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  8. Two rods of length l(1) and l(2) are made of material whose coefficien...

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  9. A metallic bar is heated from 0^(@)C to 100^(@)C. The coefficient of l...

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  10. A metal wire of length jl and area of cross - section A is fixed betwe...

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  11. The temperatuire of a pendulum, the time period of which is t, is rais...

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  12. A pendulum clock has an iron pendulum 1 m long (alpha("iron")=10^(-5) ...

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  13. The density of a substance at 0^(@)C is 10 g//c c and at 100^(@)C, its...

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  14. A liquid with coefficient of volume expansion gamma is filled in a con...

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  15. If a bimetallic strip is heated it will

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  16. A breaker is filled with water at 4^@C. at one time the temperature i...

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  17. The variation of density of a solid with temperature is give by the fo...

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  18. Two spheres of the same radius are made from the same material. One is...

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  19. The brass disc fits singly in a hole in a steel plate. To loose the di...

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  20. A brass rod and a lead rod each 80.00 cm long at 0^@C are clamped toge...

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