Physics MCQs for NET, IAS, State-SET (KSET, WBSET, MPSET, etc.), GATE, CUET, Olympiads etc. Part 5
Get unlimited access to the best preparation resource for competitive exams : get questions, notes, tests, video lectures and more- for all subjects of your exam.
Question:
What is the self-inductance of a coil in which an induced emf of is set up when the current is
Question:
Lenz՚s Law is a consequence of law of conservation of
- Energy only.
- Charge only.
- Momentum only.
- Energy and momentum.
Question:
Two blocks A lying on a friction less table are connected by a light string. The system is pulled horizontally with an acceleration of by a force F on B. The tension in the string is
Question:
A body of mass 2kg collides with a wall with a speed of and rebounds with the same speed. If the time of contact is , the force exerted on the wall s
Question:
The mechanical advantage of a system of pulley is four. The force needed to lift a mass of will be
Question:
The distance covered in time by a body having initial velocity and having constant acceleration a is given by . This result follows from
- Newton՚s First Law
- Newton՚s Second Law
- Newton՚s Third Law
- None of the above
Question:
A plumb bob is hanging from the ceiling of a car. If the car moves with the acceleration ‘a’ the angle made by the string with the vertical is
Question:
A weight can be just supported on a rough inclined plane by a force either acting along the plane or horizontally. If is the angle of friction, then is