Day 71: JEE Mains Physics

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

Tap an option to check your answer.

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

Tap an option to check your answer.

1. A.
   $\eta_{12} < \eta_{1} + \eta_{2}$
2. B.
   $\eta_{12} = \eta_{1}\eta_{2}$
3. C.
   $\eta_{12} = \eta_{1} + \eta_{2}$
4. D.
   $\eta_{12} \geq \eta_{1} + \eta_{2}$

Tap an option to check your answer.