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A barometer tube reads 76 cm of mercury....

A barometer tube reads 76 cm of mercury. If the tube is gradually inclined at an angle of `60^@` with vertical, keeping the open end immersed in the mercury reservoir, the length of the mercury column will be

A

152 cm

B

76 cm

C

38 cm

D

`38 sqrt3` cm

Text Solution

Verified by Experts

The correct Answer is:
A
`cos 60^@=H/l implies l= (h)/(1//2) =(76)/(1//2)` = 152 cm.
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