A body of mass 1.0 kg is falling with an acceleration of 10 ms⁻².
A body of mass 1.0 kg is falling with an acceleration of 10 ms⁻². Its apparent weight will be (g=10 ms⁻²)
Options
(a) 1.0 kg wt (b) 2.0 kg wt (c) zero (d) […]
MP2002
SI unit of magnetic dipole moment is
SI unit of magnetic dipole moment is
Options
(a) A m⁻¹ (b) A m² (c) T m A⁻¹ (d) m A⁻²
Correct Answer:
A m²
Explanation:
The SI unit of magnetic dipole moment is […]
A force of 10 newton acts on a body of mass 20 kg for 10 seconds. Change in its momentum
A force of 10 newton acts on a body of mass 20 kg for 10 seconds. Change in its momentum is
Options
(a) 5 kg. ms⁻¹ (b) 200 kg. ms⁻¹ (c) 100 kg. ms⁻¹ […]
A coil of N turns and mean cross-sectional area A is rotating with uniform angular
A coil of N turns and mean cross-sectional area A is rotating with uniform angular speed ω about an axis at right angle to uniform magnetic field B. The induced e.m.f. E in the coil […]
A particle of mass m moves with constant speed along a circular path of radius r under
A particle of mass m moves with constant speed along a circular path of radius r under the action of a force F. Its speed is
Options
(a) √rF/m (b) √F/r (c) √Fmr (d) […]
One-fourth length of a spring of force constant K is cut away. The force constant
One-fourth length of a spring of force constant K is cut away. The force constant of the remaining spring will be
Options
(a) 3/4 K (b) 4/3 K (c) K (d) 4K
Correct […]
The dimensional formula for Boltzmann’s constant is
The dimensional formula for Boltzmann’s constant is
Options
(a) ML²T⁻²θ⁻¹ (b) ML²T⁻² (c) ML⁰T⁻²θ⁻¹ (d) ML⁻²T⁻¹θ⁻¹
Correct Answer:
ML²T⁻²θ⁻¹
Explanation:
The Boltzmann constant has the dimension is. energy/temperature.
The same as entropy.
so, the […]
The inductive reactance of an inductor of 1/π henry at 50 Hz frequency is
The inductive reactance of an inductor of 1/π henry at 50 Hz frequency is
Options
(a) 5πΩ (b) 50Ω (c) 50πΩ (d) 100Ω
Correct Answer:
100Ω
Explanation:
No explanation available. Be the first […]
The ratio of the numerical value of the average velocity and average speed
The ratio of the numerical value of the average velocity and average speed of a body is always
Options
(a) Unity (b) Unity or less (c) Unity or more (d) Less than unity
Electric potential at any point is V= -5x +3y + √(15) z. Then the magnitude of electric
Electric potential at any point is V= -5x +3y + √(15) z. Then the magnitude of electric field is
Options
(a) 3 √2 (b) 4 √2 (c) 5 √2 (d) 7
Correct Answer: […]