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(a) A/B
(a) [M L⁵ T⁻²]
(d) 2N
(a) radius
(c) Mg-mv²/r
(a) [MLT–²]
(a) 120°
(a) 10⁴N
(d) Impulse of the force
(b) f
Two quantities A and B have different dimensions. Which mathematical operation may be physically meaningful.
(a) A/B
(a) A/B
See lessThe equation of state for a real gas is given by 2 (p+a/v²)(v-b) = RT the dimensions of constant a are
(a) [M L⁵ T⁻²]
(a) [M L⁵ T⁻²]
See lessIf Maximum and minimum values of the resultant of two forces acting at a point are 7N and 3N respectively, the smaller force is equal to
(d) 2N
(d) 2N
See lessA particle revolves round a circular path. The acceleration of the particle is inversely proportional to–
(a) radius
(a) radius
See lessA car when passes through a bridge exerts a force on it which is equal to
(c) Mg-mv²/r
(c) Mg-mv²/r
See lessThe dimensions of action are
(a) [MLT–²]
(a) [MLT–²]
See lessIf two forces are acting at a point such that the magnitude of each force is 2N and the magnitude of their resultant is also 2N, then the angle between the two forces is-
(a) 120°
(a) 120°
See lessIn a game of tug of wars, a condition of equilibrium exists. Both the team pull the rope with a force of 104N. The tension in the rope is –
(a) 10⁴N
(a) 10⁴N
See lessA graph is drawn with a force along y-axis and time along x-axis. The area under the graph represent–
(d) Impulse of the force
(d) Impulse of the force
See lessIf the tension in the cable supporting an elevator is equal to the weight of elevator, the elevator my be
(b) f
(b) f
See less