NEETPhysicsUnits and Dimensions
Statement-I: Unit chosen for measuring physical quantities should not be accessible. Statement-II: Unit should change with the changing physical conditions like temperature, pressure, etc.
Options
- ABoth Statement-I and Statement-II are correct.
- BBoth Statement-I and Statement-II are incorrect.
- CStatement-I is correct & Statement-II is incorrect.
- DStatement-I is incorrect & Statement-II is correct.
Correct answer
B. Both Statement-I and Statement-II are incorrect.
Step-by-step solution
Statement-I: "Unit chosen for measuring physical quantities should not be accessible." This is wrong. Units must be accessible and reproducible, so that measurements are standardized. Statement-II: "Unit should change with the changing physical conditions like temperature, pressure, etc." This is also wrong. Units must be constant and not vary with physical conditions. Correct Answer: (2) Both Statement-I and Statement-II are incorrect.