41. Which of the following is dimensionally correct?
(a) Pressure = energy per unit area (b) Pressure = energy per unit volume (c) Pressure = force per unit volume (d) Pressure = momentum per unit volume per unit time
Answer
Answer : (b)
Explanation
Explanation : No answer description available for this question. Let us discuss.
43. Which of the following pairs has the same units?
(a) Wavelength and Rydberg constant (b) Relative velocity and relative density (c) Thermal capacity and Boltzmann constant (d) Time period and acceleration gradient
Answer
Answer : (c)
Explanation
Explanation : No answer description available for this question. Let us discuss.
Units and Dimensions » Exercise - 141. Which of the following is dimensionally correct? (a) Pressure = energy per unit area (b) Pressure = energy per unit volume (c) Pressure = force per unit volume (d) Pressure = momentum per unit volume per unit time
Tags: unit, pressure, units, dimensions, energy, force, momentum, time, physics
Units and Dimensions » Exercise - 142. The units of length, velocity and force are doubled. Which of the following is the correct change in the other units? (a) Unit of time is doubled (b) Unit of mass is doubled (c) Unit of momentum is doubled (d) Unit of energy is doubled
Tags: units, unit, dimensions, force, time, momentum, energy, physics
Units and Dimensions » Exercise - 125. Unit of universal gravitational constant is ............... (a) kg m–1 sec (b) N m sec–1 (c) N m2 kg–2 (d) N m kg–1