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A metal sheet with a cricular hole in he...

A metal sheet with a cricular hole in heated. The hole

A

Gets larger

B

Gets smaller

C

Remains of the same size

D

Gets deformed

Text Solution

Verified by Experts

When a body is heated, the distance between any two points on it increases. So due to thermal expansion of solids, the hole gets larger.
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MOTION-HEAT TRANSFER & THERMAL EXPANSION -Exercise - 3 Section-B
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  7. If the temperature of the sun were to increase form T to 2T and its ra...

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  8. A radiation of energy E falls normally on a perfctly refelecting surfa...

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  9. The temperature of the two outer surfaces of a composite slab consisti...

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  10. The figure shows a system of two concentric spheres of radii r1 and r2...

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

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  12. One end of a thermally insulated rod is kept at a temperature T1 and t...

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  13. A long metallic bar is carrying heat from one of its ends to the other...

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  14. A long metallic bar is carrying heat from one of its ends to the other...

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  15. A liquid in a beaker has temperature theta(t) at time t and theta0 is ...

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  17. Three rods of Copper, Brass and Steel are welded together to from a Y ...

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

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