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A glass tube filled with colored water, ...


A glass tube filled with colored water, sealed at both the ends is bent into an arc. There is a small air bubble inside. The tube is held with its plane vertical. When the tube moves with constant acceleration either of left or right the bubble shifts and settles at some plane either to the left or right of the highest point. For the situation shown, what can you conclude about acceleration vector of the tube?

A

it points towards the right

B

it points towards the left.

C

its magnitude is ` g tan theta`

D

its magnitude is `gcot theta`

Text Solution

Verified by Experts

The correct Answer is:
A, C
Free body diagram is:

Resultant of `rho_(w)Vg&rho_(w)Va` should be exactly
opposite to N i.e., `tantheta=(a)/(g)impliesa=g tan theta`
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