Assertion (A): Some essential elements can alter the osmotic potential of a cell.
Reason (R): Sulphur is the main constituent of several coenzymes.
Match the terms in Column-I with their description in Column-II and choose the correct option.
The percentage error in the measurement of mass and velocity are 3% and 4% respectively. The percentage error in the measurement of kinetic energy is:
If \( L, M, N \) are the midpoints of the sides PQ, QR, and RP of triangle \( \Delta PQR \), then \( \overline{QM} + \overline{LN} + \overline{ML} + \overline{RN} - \overline{MN} - \overline{QL} = \):