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Two plates identical in size, one of bla...

Two plates identical in size, one of black and rough surface `(B_1)` and the other smooth and polished `(A_2)` are interconnected by a thin horizontal pipe with a mercury pellet at the centre. Two more plates `A_1` (identical to `A_2` ) and `B_2` (identical to `B_1`) are heated to the same temperature and placed closed to the plates `B_1, and A_2` as shown in the diagram. The Mercury pellet

A

Moves to the right

B

Moves to the left

C

Remains stationary

D

Starts oscillating left and right

Text Solution

Verified by Experts

The correct Answer is:
C
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