Build a question paper in 60 seconds.

1. A
   $\sqrt{\frac{k}{m} + \frac{b^2}{m^2}}$
2. B
   $\sqrt{\frac{k}{m} + \frac{b^2}{m^2}}$
3. C
   $\sqrt{\frac{k}{m} - \frac{b^2}{m^2}}$
4. D
   $\sqrt{\frac{k}{m} - \frac{b^2}{4m^2}}$

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1. A
   10 mJ
2. B
   5 mJ
3. C
   $10\,\mu J$
4. D
   $5\,\mu J$

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1. A
   $\frac{mg}{2M+m}$
2. B
   $\frac{Mg}{M+2m}$
3. C
   $\frac{Mg}{2M+m}$
4. D
   $\frac{mg}{M+2m}$

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1. A
   8.48 Å
2. B
   2.12 Å
3. C
   4.77 Å
4. D
   0.53 Å

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1. A
   4, 5
2. B
   3, 6
3. C
   2, 7
4. D
   1, 8

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1. A
   $\phi + \frac{\pi}{2}$
2. B
   $\phi$
3. C
   $\phi - \frac{\pi}{2}$
4. D
   $(\phi + \pi)$

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1. A
   2:1
2. B
   8:1
3. C
   101:102
4. D
   102:101

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1. A
   $\frac{1}{2}B\pi F R^2$
2. B
   $B\pi F R^2$
3. C
   $\frac{1}{n}B\pi F R$
4. D
   $\frac{B\pi F R^2}{n}$

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1. A
   decreases
2. B
   increases
3. C
   remains same
4. D
   sometimes increases and sometimes decreases

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1. A
   $3\lambda$
2. B
   $4\lambda$
3. C
   $5\lambda$
4. D
   $6\lambda$

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1. A
   $\frac{2}{\mu_0 \pi^{1/2}} B A^{3/2}$
2. B
   $\frac{B A^{3/2}}{\mu_0 \pi}$
3. C
   $\frac{2 B A^{3/2}}{\mu_0 \pi^{1/2}}$
4. D
   $\frac{B A^2}{\mu_0 \pi}$

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1. A
   AB and BC
2. B
   AB and CD
3. C
   AD and BC
4. D
   BC and CD

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1. A
   $\frac{G^2}{S+G}$
2. B
   $\frac{G}{S+G}$
3. C
   $\frac{S^2}{G+S}$
4. D
   $\frac{GS}{S+G}$

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1. A
   $10^4$ W
2. B
   10 W
3. C
   2.5 W
4. D
   5 W

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1. A
   525 kg m$^2$
2. B
   625 kg m$^2$
3. C
   525 g cm$^2$
4. D
   625 g cm$^2$

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1. A
   168
2. B
   204
3. C
   336
4. D
   530

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1. A
   256 Hz
2. B
   186 Hz
3. C
   225 Hz
4. D
   280 Hz

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1. A
   $\frac{25E}{36}$
2. B
   $\frac{36E}{25}$
3. C
   $\frac{3E}{5}$
4. D
   $\frac{5E}{3}$

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1. A
   $\frac{1500}{d}$
2. B
   $\frac{373}{273} \times \frac{1500}{d}$
3. C
   $\frac{273}{373} \times \frac{1500}{d}$
4. D
   $\frac{373}{273} \times \frac{1500}{d}$

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

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1. A
   $(T+4.2)$ K
2. B
   $(T-4.2)$ K
3. C
   $(T+4)$ K
4. D
   $(T-4)$ K

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1. A
   there shall be alternative interference fringes of red and blue.
2. B
   there shall be interference fringes for red distinct from that for blue.
3. C
   there shall be no interference fringes.
4. D
   there shall be interference fringes for red mixing with one for blue.

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1. A
   $4 \times 10^{-5}$ m$^3$/s
2. B
   $2 \times 10^{-5}$ m$^3$/s
3. C
   $5 \times 10^{-5}$ m$^3$/s
4. D
   $6 \times 10^{-5}$ m$^3$/s

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1. A
   0.98, 49
2. B
   49, 0.98
3. C
   0.49, 98
4. D
   98, 0.49

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1. A
   165 Hz
2. B
   150 Hz
3. C
   660 Hz
4. D
   330 Hz

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