Day 78: MHT-CET Physics

1. A.
   $4\pi TR^2\left[\dfrac{R}{r} - 1\right]$
2. B.
   $4\pi TR\left[\dfrac{R}{r} - 1\right]$
3. C.
   $4\pi T\left[\dfrac{R^2}{r^2} - 1\right]$
4. D.
   $4\pi T\left[1 + \dfrac{R^3}{r}\right]$

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1. A.
   A pilot in an aeroplane which is taking off.
2. B.
   A driver driving a bus which is moving with constant velocity.
3. C.
   A child revolving in a merry - go - round.
4. D.
   A man in a train which is slowing down to stop.

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1. A.
   $n \cdot \dfrac{\pi}{2}$
2. B.
   $(2n + 1)\pi$
3. C.
   $(2n - 1)\pi$
4. D.
   $(2n - 1)\dfrac{\pi}{2}$

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1. A.
   $(l_1) : (l_1 + l_2)$
2. B.
   $(l_1) : (l_1 - l_2)$
3. C.
   $(l_1 + l_2) : (l_1)$
4. D.
   $(l_1 + l_2) : (l_1 - l_2)$

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1. A.
   $K_1 = \dfrac{K_2}{3}$
2. B.
   $K_1 < \dfrac{K_2}{3}$
3. C.
   $K_1 = 3K_2$
4. D.
   $K_1 = \dfrac{2}{3}K_2$

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