The Indian Patents Act, 1970 (as amended) fixes a single term for the life of a patent regardless of the field of invention. Checking each option against this statutory provision:
Only the twenty-year term is consistent with the statutory duration prescribed under the Indian Patents Act.
Therefore, the correct answer is 20 Years.
As per the Pharmacy Act, in the composition of Pharmacy Council of India, the total number of Ex‐officio members is
List I | List II | ||
|---|---|---|---|
| A | \(\Omega^{-1}\) | I | Specific conductance |
| B | \(∧\) | II | Electrical conductance |
| C | k | III | Specific resistance |
| D | \(\rho\) | IV | Equivalent conductance |
List I | List II | ||
|---|---|---|---|
| A | Constant heat (q = 0) | I | Isothermal |
| B | Reversible process at constant temperature (dT = 0) | II | Isometric |
| C | Constant volume (dV = 0) | III | Adiabatic |
| D | Constant pressure (dP = 0) | IV | Isobar |