Physics question and answers for May 20, 2024
- Q explay 2 40 A ball of mass 3 kg collides with a wall with velocity 10 m sec at an angle of 30 and after collision reflects at the same...
- Q The density of a linear rod of length L varies as p A Bx where x is the distance from the left end Locate the centre of mass xcm 3AL...
- Q Which of the following potential energy curves can possible describe the elastic collision between two billiard balls r is distance between centre of balls and R is radius of balls...
- Q g The centre of gravity of a hollow cylinder of mass 200 is 10 cm above its base If 500 g of water is poured into the cylinder the water...
- Q Three indentical bodies each mass M are at vertices of an equilateral triangle of a keeping the triangle as such by which angular the bodies should be rotated in their...
- Q The moment of inertia of semicircular plate of radius R and mass M about axis AA in its plane passing through its centre as shown in the figure is 0...
- Q 5 For head on collision between two colliding balls of equal radii r the impact parameter is equal to 1 2r 3 More than 2r 2 Zero 4 Less than...
- Q side 1 0 L L L From a uniform square plate of side L a square of L 12 is cut out from the centre and placed as shown Co...
- Q A ball of mass m moving with speed u collides wit a smooth horizontal surface at angle 8 with it as shown in figure The magnitude of impulse imparted to...
- Q A smooth hoop lies on a smooth horizontal table and is fixed A particle is projected on the table from a point A on the inner circumference of the hoop...
- Q 35 A tennis ball bounces down a flight of stairs striking each step in turn and rebounding to the height of the step above If the height of each step...
- Q If the time interval between the first and the second impacts is T then 0 ev T gr 2
- Q 41 A R A thin uniform spherical sphell of radius R is cut such that upper portion of height upside down from same cross section Mass of sphere M Height...
- Q A conducting rod of length is hinged at point 40 O It is free to rotate in vertical plane There exists a uniform magnetic field B in horizontal direction The...
- Q G balls of mass 20 g is firing 20 balls per second on the smooth horizontal table surface ABCD If the collision is perfectly elastic and balls are striking at...
- Q A block of mass m rests on a rough horizontal surface Coefficient of friction u When a bullet of mass m 2 strikes horizontally and get embedded in it the...
- Q Two persons standing on a floating boat run in succession along its length with a speed 4 2 m s relative to the boat and dive off from the end...
- Q 2 If the ice at the poles melts and flows towards the equator how will it affect the duration of day night 3 When tall buildings are constructed on earth...
- Q 3 A disk A of radius r moving on perfectly smooth surface at a speed v undergoes an elastic collision with an identical stationary disk B Find the velocity of...
- Q One solid sphere A and another hollow sphere B are of same mass and same outer radii Their moment of inertia about their diameters are respectively and I Such that...
- Q 6 A particle of mass m is dropped on a fixed smooth inclined plane of angle 0 30 as shown in the diagram After collision particle moves horizontally Coefficient of...
- Q A rod of length L is pivoted at one end and is rotated with a uniform angular velocity in a horizontal plane The value of x for point P where...
- Q 3 If linear density of a rod of length 4 m varies as 4 x then the position of the centre of gravity of the rod is 1 1 27...
- Q The moment of inertia about the axis 1 1 for system 23 of solid sphere shown will be M 5 kg R 1 m 1 O 1 48 kg m...
- Q A ring and a particle of masses 2m and m are kept as shown in the figure such that the CM of the combination lies at the origin Find x...
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