A car is moving with uniform acceleration. It covers 200 m in 2 sec and 220 m
A car is moving with uniform acceleration. It covers 200 m in 2 sec and 220 m in next 4 sec. The velocity of car at the end of 7th second from start is
Questions
A boy playing on the roof of a 10m high building throws a ball with a speed
A boy playing on the roof of a 10m high building throws a ball with a speed of 10 m/s at an angle of 30⁰ with the horizontal. How far from the throwing point will […]
A motor-cyclist drives a motor cycle in a vertical circle. His minimum velocity
A motor-cyclist drives a motor cycle in a vertical circle. His minimum velocity at the highest point of the circle will be
Options
(a) √2Rg (b) √3Rg (c) √Rg (d) 2Rg
Correct Answer:
√Rg
Which one of the following is a vector?
Which one of the following is a vector?
Options
(a) Strength of electric circuit (b) Gravitational potential (c) Work done (d) Impulse
Correct Answer:
Impulse
Explanation:
No explanation available. Be the first to […]
An α-particle and a proton travel with the same velocity in a magnetic field
An α-particle and a proton travel with the same velocity in a magnetic field perpendicular to the direction of their velocities. The ratio of the radii of their respective circular paths is
Options
Two particles A and B having equal charges +6C, after being accelerated
Two particles A and B having equal charges +6C, after being accelerated through the same potential difference, enter in a region of uniform magnetic field and describe circular paths of radii 2 cm and 3 […]
A 220 volt and 1000 watt bulb is connected across a 110 volt mains supply.
A 220 volt and 1000 watt bulb is connected across a 110 volt mains supply. The power consumed will be
Options
(a) 1000 W (b) 750 W (c) 500 W (d) 250 W
Correct […]
The resultant of two forces, one double the other in magnitude, is perpendicular
The resultant of two forces, one double the other in magnitude, is perpendicular to the smaller of the two forces. The angle between the two forces is
Options
(a) 60° (b) 150° (c) […]
The momentum is most closely related to
The momentum is most closely related to
Options
(a) Force (b) Impulse (c) Power (d) Kinetic energy
Correct Answer:
Force
Explanation:
Force is rate of chance of momentum.
Height of geostationary satellite is
Height of geostationary satellite is
Options
(a) 16000 km (b) 22000 km (c) 28000 km (d) 36000 km
Correct Answer:
36000 km
Explanation:
The principle of the geostationary satellite is its period of […]