Physics questions
20027 published questions with worked solutions.
- This question has Statement −1 and Statement −2. Of the four choices given after the statements, choose the one that best...
- The half life of a radioactive substance is 20 minutes. The approximate time interval (t_2 - t_1) between the time t_2 when 23 of...
- This question has Statement −1 and Statement −2. Of the four choices given after the statements, choose the one that best...Not in JEE or NEET syllabus
- An object moves from positions (6, 8) to (12, 10) in the XY-plane. Magnitude and direction of displacement is
- A particle moves along the positive branch of the curve y = x^2 2 , where x = t^2 2 . Here, x and y are measured in metres and t...
- The position vector of an object at any time t is given by 3t^2 i + 6t j + k . Its velocity along Y-axis has the magnitude
- The coordinates of a moving particle at any time t are given by x = ct^2 and y = bt^2. The speed of the particle is given by
- The initial position of an object at rest is given by 3 i - 8 j . It moves with constant acceleration and reaches to the position...
- A particle's velocity changes from (2 i + 3 j ) m ,s^ -1 to (2 i - 3 j ) m ,s^ -1 in 2 s. The acceleration in m ,s^ -2 is
- A train is moving towards East and a car is along North, both with same speed. The observed direction of car to the passenger in...
- A 100 m long train crosses a man travelling at 5 km ,h^ -1 , in opposite direction, in 7.2 s, then the velocity of train is
- Two bodies are held separated by 9.8 m vertically one above the other. They are released simultaneously to fall freely under...
- A stationary man observes that the rain is falling vertically downward. When he starts running with a velocity of 12 km ,h^ -1 ,...
- The speed of boat is 5 km ,h^ -1 in still water. It crosses a river of width 1 km along the shortest possible path in 15 min....
- The rowing speed of a man relative to water is 5 km ,h^ -1 and the speed of water flow is 3 km ,h^ -1 . At what angle to the...
- Two trains are each 50 m long moving parallel towards each other at speeds 10 m ,s^ -1 and 15 m ,s^ -1 respectively, at what time...
- An aeroplane is moving with a velocity u. It drops a packet from a height h. The time t taken by the packet in reaching the...
- A football player throws a ball with a velocity of 50 m ,s^ -1 at an angle 30^ from the horizontal. The ball remains in the air...
- A particle is projected with a velocity of 20 m ,s^ -1 at an angle of 60^ to the horizontal. The particle hits the horizontal...
- If the initial velocity of a projection be doubled, keeping the angle of projection same, the maximum height reached by it will