Physics questions
20027 published questions with worked solutions.
- When p-n junction diode is forward biasedNot in JEE Advanced syllabus
- A particle is moving eastwards with a velocity of 5 m/s in 10 seconds the velocity changes to 5 m/s northwards. The average...
- Out of the following pair, which one does NOT have identical dimensions is
- The relation between time t and distance x is t = ax^2 + bx where a and b are constants. The acceleration is
- A car starting from rest accelerates at the rate f through a distance S, then continues at constant speed for time t and then...
- A parachutist after bailing out falls 50 m without friction. When parachute opens, it decelerates at 2 m/s^2. He reaches the...
- Two points A and B move from rest along a straight line with constant acceleration f and f ' respectively. If A takes m sec. more...
- A particle is projected from a point O with velocity u at an angle of 60^ with the horizontal. When it is moving in a direction...
- A smooth block is released at rest on a 45^ incline and then slides a distance d. The time taken to slide is n times as much to...
- The upper half of an inclined plane with inclination is perfectly smooth while the lower half is rough. A body starting from rest...
- Consider a car moving on a straight road with a speed of 100 m/s. The distance at which car can be stopped is [ _k = 0.5]
- An annular ring with inner and outer radii R_1 and R_2 is rolling without slipping with a uniform angular speed. The ratio of the...
- A bullet fired into a fixed target loses half of its velocity after penetrating 3 cm. How much further it will penetrate before...
- A body of mass m is accelerated uniformly from rest to a speed v in a time T. The instantaneous power delivered to the body as a...
- A body A of mass M while falling vertically downwards under gravity breaks into two parts; a body B of mass 1/3M and a body C of...
- The moment of inertia of a uniform semicircular disc of mass M and radius r about a line perpendicular to the plane of the disc...
- Average density of the earth
- The change in the value of g at a height ' h ' above the surface of the earth is the same as at a depth 'd' below the surface of...
- A particle of mass 10 g is kept on the surface of a uniform sphere of mass 100 kg and radius 10 cm. Find the work to be done...
- If S is stress and Y is Young's modulus of material of a wire, the energy stored in the wire per unit volume is