Day 396: MHT-CET Physics

1. A.
   100 Hz, $4.7 \times 10^4\text{ cm/s}^2$
2. B.
   50 Hz, $7.5 \times 10^3\text{ cm/s}^2$
3. C.
   25 Hz, $4.7 \times 10^4\text{ cm/s}^2$
4. D.
   25 Hz, $7.5 \times 10^4\text{ cm/s}^2$

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1. A.
   zero.
2. B.
   unity.
3. C.
   less than one (non-zero).
4. D.
   infinity.

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1. A.
   $\eta=\dfrac{1}{\beta}$
2. B.
   $\eta=\dfrac{1}{\beta+1}$
3. C.
   $\eta\beta=\dfrac{1}{2}$
4. D.
   $\eta=\dfrac{1}{\beta-1}$

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1. A.
   $\frac{2\pi}{\lambda}(\mu_1 L_1 - \mu_2 L_2)$
2. B.
   $\frac{2\pi}{\lambda}(L_2 - L_1)$
3. C.
   $\frac{2\pi}{\lambda}\left(\frac{L_1}{\mu_1} - \frac{L_2}{\mu_2}\right)$
4. D.
   $\frac{2\pi}{\lambda}(\mu_2 L_1 - \mu_1 L_2)$

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1. A.
   current is maximum when $\omega^2 = \frac{1}{LC}$
2. B.
   current is zero
3. C.
   voltage is minimum when $\omega^2 = \frac{1}{LC}$
4. D.
   voltage is maximum when $\omega^2 = \frac{1}{LC}$

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