A heavy small sized sphere is suspended by a string of length l.The sphere rotates uniformly in a horizontal circle with the string making an angle θ with the vertical.Then, the time-period of this conical […]
A stone of mass 1 kg tied to a light inexensible string of length L=10/3 is whirling in a circular path of radius L in vertical plane.If the ratio of the maximum tension to the […]
A national roadway bridge over a canal is in the form of an arc of a circle of radius 49 m.What is the maximum speed with which a car can move without leaving the ground […]
A car is moving in a circular horizontal track of radius 10.0 m with a constant speed of 10.0 ms⁻¹.A plumb bob is suspended from the roof of the car by a light rigid rod […]
A particle is kept at rest at the top of a sphere of diameter 42m.When disturbed slightly, it slides down.At what height h from the bottom, the particle will leave the sphere?
Options
A 1kg stone at the end of 1m long string is whirled in a vertical circle at constant speed of 4 m/s.The tension in the string is 6N, when the stone at (take,g=10 m/s²).
A stone is tied to a string of length l and whirled in a vertical circle with the other end of the string as the centre.At a certain instant of time,the stone is at its […]
In a semiconductor
Options
(a) There are no free electrons at any temperature (b) The number of free electrons is more than that in a conductor (c) There are no free electrons at […]
Zener diode is used
Options
(a) as an amplifier (b) as a rectifier (c) as an oscillator (d) as a voltage regulator
Correct Answer:
as a voltage regulator
Explanation:
No explanation available. Be […]
Dimensions of Torque are
Options
(a) ML²T⁻² (b) MLT (c) M⁰L⁰T² (d) M²L⁻²T²
Correct Answer:
ML²T⁻²
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting […]
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