Day 585: JEE Mains Physics

1. A.
   $h_{\max} = 10\text{ }m\ \text{ }T = 2.5\text{ }s$
2. B.
   $h_{\max} = 15.625\text{ }m\ \text{ }T = 3.54\text{ }s$
3. C.
   $h_{\max} = 15.625\text{ }m\ \text{ }T = 1.77\text{ }s$
4. D.
   $h_{\max} = 3.54\text{ }m\ \text{ }T = 0.125\text{ }s$

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

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1. A.
   In primary rainbow, observer sees red colour on the top and violet on the bottom
2. B.
   In primary rainbow, observer sees violet colour on the top and red on the bottom
3. C.
   In primary rainbow, light wave suffers total internal reflection twice before coming out of water drops
4. D.
   Primary rainbow is less bright than secondary rainbow

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1. A.
   $\left( \frac{5}{2} \right)\Omega$
2. B.
   $\left( \frac{15}{4} \right)\Omega$
3. C.
   $6\Omega$
4. D.
   $\left( \frac{30}{11} \right)\Omega$

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