
- A$q_1$ and $q_2$ are positive and $q_2 > q_1$
- ✓$q_1$ and $q_2$ are positive and $q_1 > q_2$
- C$q_1$ and $q_2$ are negative and $\left|q_1\right| > \left|q_2\right|$
- D$q_1$ and $q_2$ are negative and $\left|q_2\right| > \left|q_1\right|$

$(i)$ Electric field lines originates from positive charge.
$(ii)$ Higher the number of field lines originating from positive charge, greater is magnitude of charge.
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$x = 0.01\cos \left( {\pi \,t + \frac{\pi }{4}} \right)$
The frequency of the motion will be
$(i)$ Sequentially keeping in contact with $2$ reservoirs such that each reservoir supplies same amount of heat.
$(ii)$ Sequentially keeping in contact with 8 reservoirs such that each reservoir supplies same amount of heat.
In both the cases body is brought from initial temperature $100^{\circ}\,C$ to final temperature $200^{\circ}\,C$. Entropy change of the body in the two cases respectively is :
