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Four identical conducting plates are pla...

Four identical conducting plates are placed parallel to each other at equal separations as shown below:

Plates A and D are fixed while B and C are connected with the help of a conducting spring of spring constant k. Initially, the spring is in relaxed position and B and C are at rest, now the spring is compressed slightly by displacing B and C and then plates B and C are released to perform SHM. Now the capacitance of the system across PQ [ Mass of each plate is m]

A

remain constant

B

Increase continuously

C

deceases continuously

D

is verying sinusdoidally with frequency `1/(2pi)sqrt((2k)/m)`

Text Solution

Verified by Experts

The correct Answer is:
D
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