A ball of mass 0.15kg is kicked against a rigid vertical wall with a horizontal…
A ball of mass 0.15kg is kicked against a rigid vertical wall with a horizontal velocity of 50ms-1.…
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The force of attraction between two point masses is 10-4N when the distance between them…
The force of attraction between two point masses is 10-4N when the distance between them is 0.18m. If…
The velocity of a sound wave at 27oC is 360ms-1. Its velocity at 127oC is
The velocity of a sound wave at 27oC is 360ms-1. Its velocity at 127oC is A. 120√3 ms-1…
The physical quantity that has the same dimensions as impulse is
The physical quantity that has the same dimensions as impulse is A. energy B. momentum C. surface tension…
A ball is moving at 18ms-1 in a direction inclined at 60o to the horizontal….
A ball is moving at 18ms-1 in a direction inclined at 60o to the horizontal. The horizontal component…
If a reverse-biased voltage is applied across a p-n junction, the depletion layer width is
If a reverse-biased voltage is applied across a p-n junction, the depletion layer width is A. increased B.…
I. Small size. II. Low power requirement III. Not easily damaged by high temperature IV….
I. Small size. II. Low power requirement III. Not easily damaged by high temperature IV. Highly durable. Which…
A bullet fired at a wooden block of thickness 0.15m manages to penetrate the block….
A bullet fired at a wooden block of thickness 0.15m manages to penetrate the block. If the mass…
The p-n junction diodes can act as rectifiers because they
The p-n junction diodes can act as rectifiers because they A. conduct current when forward-biased B. conduct current…
A piece of radioactive material contains 1000 atmos. If its half -life is 20seconds, the…
A piece of radioactive material contains 1000 atmos. If its half -life is 20seconds, the time taken for…