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?
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 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 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. 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 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
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
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 […]
A body oscillates with amplitude of 10 cm in a horizontal platform. The maximum angular frequency which the platform can vibrate vertically such that body of mass 10 kg will not leave contact is
64 identical spheres of charge q and capacitance C each are combined to form a large sphere. The charge and capacitance of the large sphere is
Options
(a) 64q, C (b) 16q, 4C (c) […]
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