Day 459: JEE Mains Physics

1. A.
   (A) is false but (R) is true.
2. B.
   (A) is true but (R) is false.
3. C.
   Both (A) and (R) are true and (R) is the correct explanation of (A).
4. D.
   Both (A) and (R) are true but (R) is not the correct explanation of (A).

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1. A.
   $\frac{2mgR}{B^{2}l^{2}}$
2. B.
   $\frac{8mgR}{B^{2}l^{2}}$
3. C.
   $\frac{2mgR}{B^{2}{\text{ }L}^{2}}$
4. D.
   $\frac{mgR}{B^{2}l^{2}}$

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1. A.
   (D) only
2. B.
   (C) and (E) only
3. C.
   (A) only
4. D.
   (B) and (D) only

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1. A.
   33.34
2. B.
   66.67
3. C.
   200
4. D.
   400

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1. A.
   $1600\text{ }km$
2. B.
   $540\text{ }km$
3. C.
   $1200\text{ }km$
4. D.
   $1000\text{ }km$

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