Match the following:
In the following diagram, the work done in moving a point charge from point P to point A, B and C are \( W_A, W_B, W_C \) respectively. Then (A, B, C are points on semicircle and point charge \( q \) is at the centre of semicircle)
Match the following
Assertion (A): PCR is used to detect HIV. Reason (R): It is based on the principle of antigen-antibody interaction.