A scooter is going round a circular road of radius 100 m at a speed of 10m/s
A scooter is going round a circular road of radius 100 m at a speed of 10m/s. The angular speed of scooter will be
Options
(a) 0.01 rad/s (b) 0.1 rad/s (c) 1 […]
Questions
The apparent weight of the body of mass 10 kg when it is travelling upwards with
The apparent weight of the body of mass 10 kg when it is travelling upwards with an acceleration of 2 m/s² will be
Options
(a) 118 N (b) 198 N (c) 164 N […]
Two charges each equal to 2µ C are 0.5m apart. If both of them exist inside vacuum
Two charges each equal to 2µ C are 0.5m apart. If both of them exist inside vacuum, then the force between them is
Options
(a) 1.89 N (b) 2.44 N (c) 0.144 N […]
In P-N junction having depletion layer of thickness 10⁻⁶ m, the potential across
In P-N junction having depletion layer of thickness 10⁻⁶ m, the potential across it is 0.1 V. The electric field is
Options
(a) 10⁷ (b) 10⁻⁶ (c) 10⁵ (d) 10⁻⁵
Correct Answer:
10⁵
If X=3YZ², find dimensions of Y if X and Z are the dimensions of capacity
If X=3YZ², find dimensions of Y if X and Z are the dimensions of capacity and magnetic field(induction) respectively
Options
(a) M⁻³L⁻²T⁻⁴A⁻¹ (b) ML⁻² (c) M⁻³L⁻²T⁴A⁴ (d) M⁻³L⁻²T⁸A⁴
Correct Answer:
M⁻³L⁻²T⁸A⁴
Explanation:
No […]
An air core solenoid has 1000 turns and is one meter long. Its cross sectional area
An air core solenoid has 1000 turns and is one meter long. Its cross sectional area is 10 cm². Its self inductance is
Options
(a) 0.1256 mH (b) 12.56 mH (c) 1.256 mH […]
Ring, hollow ring and solid sphere are rolled down from inclined plane
Ring, hollow ring and solid sphere are rolled down from inclined plane. Which will take less time to reach the ground?
Options
(a) Solid Sphere (b) Hollow Sphere (c) Ring (d) Hollow Sphere […]
A bullet comes out of the barrel of gun of length 2m with a speed of 800 m/s
A bullet comes out of the barrel of gun of length 2m with a speed of 800 m/s. The average acceleration of the bullet is
Options
(a) 160 m/s² (b) 60 km/s² (c) […]
A body of mass m=3.513 kg is moving along the x-axis with a speed of 5 m/s
A body of mass m=3.513 kg is moving along the x-axis with a speed of 5 m/s. The magnitude of its momentum is recorded as
Options
(a) 17.57 kg m/s (b) 17.6 kg […]
A neutron moving with velocity v collides with a stationary particle
A neutron moving with velocity v collides with a stationary particle. The velocity of the neutron after the collision is
Options
(a) -3v/5 (b) 3v/5 (c) 2v/5 (d) -2v/5
Correct Answer:
-3v/5
Explanation: […]