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IIT JEE Advanced 2006 Paper 1

Paragraph Type
This section contains 4 paragraphs. Based on each paragraph, there are 3 questions. Each question has 4 choices (A), (B), (C) and (D) out of which ONLY ONE is correct.
Paragraph for Questions 21–23:
The capacitor of capacitance C can be charged (with the help of a resistance R) by a voltage source V, by closing switch S1 while keeping switch S2 open. The capacitor can be connected in series with an inductor L by closing switch S2 and opening S1.

Question : 23

Total: 120

If the total charge stored in the LC circuit is Q0, then for t ≥ 0,

the charge on the capacitor is Q = Q0cos(
π
2
+
1
√LC
).
the charge on the capacitor is Q0cos(
π
2
−
1
√LC
).
the charge on the capacitor is Q = - LC
d2Q
dt2
the charge on the capacitor is Q = -
1
√LC
d2Q
dt2

Validate

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