Four equal point charges Q each are placed in the xy placed at (0, 2), (4, 2), (4, −2) and (0, −2). The work required to put a fifth charge Q at the origin of the coordinate system will be: |
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(a) |
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(b) |
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(c) |
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(d) |
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Four equal point charges Q each are placed in the xy placed at (0, 2), (4, 2), (4, −2) and (0, −2). The work required to put a fifth charge Q at the origin of the coordinate system will be: |
|||
(a) |
|
(b) |
|
(c) |
|
(d) |
|
Potential at origin=
(Potential at
=KQ Work required to put a fifth charge Q at origin is equal to
A cylindrical plastic bottle of negligible mass is filled with 310 ml of water and left floating in a pond with still water. If pressed downward slightly and released, it starts performing simple harmonic motion at angular frequency |
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(a) |
5.00 rad s−1 |
(b) |
1.25 rad s−1 |
(c) |
3.75 rad s−1 |
(d) |
7.95 rad s−1 |
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