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A triangular plate has two cavities , on...

A triangular plate has two cavities , one square and one rectangular as shown in figure . The plate is heated.

A

a increase , b decrease

B

a and b both increase

C

a and b increase , x and l decrease

D

a , b , x and l all increase

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The correct Answer is:
B, D

All dimensions increase on heating.
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ALLEN -GEOMETRICAL OPTICS-EXERCISE -02
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  2. Three rods of equal of length are joined to from an equilateral triang...

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  9. The figure shows two paths for the change of state of a gas from A to ...

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  10. During the melting of a slab of ice at 273K at atmospheric pressure,

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  11. Two substances A and B of equal mass m are heated by uniform rate of 6...

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  12. A well insulated substance in solid state is heated at a constant rate...

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