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Question

A barometer kept in a stationary elevator reads 76 cm. If the elevator starts accelerating up the reading will be:

A
Zero
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B
Equal to 76cm
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C
More than 76cm
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D
Less than 76cm
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Solution

The correct option is C More than 76cm
The movement of elevator up will increase value of g which will result in increase in pressure leading to increase in reading of barometer.

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