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1. A
   the capacitance of the capacitor increases
2. B
   the charge on the capacitor decreases
3. C
   the voltage across the capacitor increases
4. D
   the energy stored in the capacitor decreases

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1. A
   $\frac{1}{2}$
2. B
   $\frac{1}{\sqrt{2}}$
3. C
   $\sqrt{2}$
4. D
   $2$

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1. A
   be zero
2. B
   flow from Q to S
3. C
   flow in a direction which depends on value of V
4. D
   flow from S to Q

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1. A
   0.4 m
2. B
   0.1 m
3. C
   0.2 m
4. D
   0.3 m

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1. A
   $W_2 = W_1$
2. B
   $W_2 = 4W_1$
3. C
   $W_2 < 4W_1$
4. D
   $W_2 = 0$

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1. A
   0.552 A
2. B
   20.55 A
3. C
   0.55 A
4. D
   2 A

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1. A
   9:1
2. B
   4:1
3. C
   3:1
4. D
   5:3

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1. A
   $\sqrt{\frac{G(M_1+M_2)}{d}}$
2. B
   $\sqrt{\frac{2G(M_1+M_2)}{d}}$
3. C
   $\sqrt{\frac{Gd}{M_1+M_2}}$
4. D
   $\sqrt{\frac{M_1+M_2}{Gd}}$

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1. A
   580 K
2. B
   1200 K
3. C
   1160 K
4. D
   927 K

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1. A
   $\frac{\mu_0(I_1 - I_2)}{\pi d}$
2. B
   $\frac{\mu_0(I_1 + I_2)}{2\pi d}$
3. C
   $\frac{\mu_0(I_1 - I_2)}{2\pi d}$
4. D
   $\frac{\mu_0(I_1 + I_2)}{\pi d}$

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1. A
   decreasing its length
2. B
   increasing its area of cross-section
3. C
   increasing the current through it
4. D
   increasing the number of turns in it

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1. A
   0, 1, 0, 0
2. B
   1, 1, 1, 0
3. C
   1, 0, 1, 1
4. D
   0, 1, 0, 1

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1. A
   Path of the electron is more curved than that of proton
2. B
   They will travel undeflected
3. C
   Path of the proton is more curved than that of the electron
4. D
   Both the electron and the proton will move along the same curved path but they will move in opposite directions

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1. A
   inversely proportional to inductance and frequency of the alternating current
2. B
   inversely proportional to frequency of alternating current and directly proportional to inductance
3. C
   inversely proportional to inductance and directly proportional to the frequency of alternating current
4. D
   directly proportional to inductance and frequency of alternating current

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1. A
   $\frac{V^2}{dC}$
2. B
   $\frac{C^2 V^2}{d^2}$
3. C
   $\frac{CV^2}{2d}$
4. D
   $\frac{C^2 V^2}{2d^2}$

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1. A
   Both statements A and B are wrong.
2. B
   Only the statement B is true.
3. C
   Only the statement A is true.
4. D
   Both statements A and B are true.

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1. A
   increases
2. B
   remains unchanged
3. C
   decreases
4. D
   zero

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1. A
   $250$ m$^{-1}$
2. B
   $2.5 \times 10^6$ m$^{-1}$
3. C
   $0.25 \times 10^9$ m$^{-1}$
4. D
   $2.5 \times 10^5$ m$^{-1}$

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1. A
   $2\pi\sqrt{\frac{\pi}{8}}$
2. B
   $\frac{1}{2\pi}\sqrt{\frac{\pi}{8}}$
3. C
   $\frac{1}{2\pi}\sqrt{\frac{g}{r}}$
4. D
   $2\pi\sqrt{\frac{g}{r}}$

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1. A
   $\sqrt{\frac{m_3}{m_1}}$
2. B
   $\sqrt{\frac{m_1}{m_2}}$
3. C
   $\frac{m_1}{m_2}$
4. D
   $\sqrt{\frac{m_2}{m_1}}$

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1. A
   1:2
2. B
   3:1
3. C
   2:1
4. D
   1:3

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1. A
   20 g
2. B
   10 g
3. C
   40 g
4. D
   5 g

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1. A
   D
2. B
   B
3. C
   C
4. D
   A

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1. A
   decreases with increase of slit width
2. B
   may increase or decrease
3. C
   decreases with decrease of slit width
4. D
   increases with increase in slit width

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1. A
   momentum
2. B
   velocity
3. C
   acceleration
4. D
   kinetic energy

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