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A block hangs freely from the end of a spring. A boy then slowly pushes the block upwards so that the spring becomes strain free. The gain in gravitational potential energy of the block A block hangs freely from the end of a spring. A boy then slowly pushes the block upwards so that the [...]

A vehicle is driven along a straight horizontal track by a motor which exerts a constant driving force. The vehicle starts from rest at t = 0 and the effects of friction and air resistance are negligible. Mark the correct statement(s). a. The work-energy theorem is valid only for particles b. The work-energy theorem is [...]

When a bullet is fired from a gun a. The kinetic energy of the bullet is more than that of the gun. b. The acceleration of the bullet is more than that of the gun When a bullet is fired from a gun a. The kinetic energy of the bullet is more than that of [...]

A manufacture of TV sets produced 600 units in the third year and 700 units in the 7th year. Assuming that the production increases uniformly by a fixed number every year, find (i) the production in the first year (ii) the production in the 10th year (iii) the total production in first 7 years A [...]

Find the sum of first 24 terms of the list of numbers whose nth term is given by an = 3 + 2n Find the sum of first 24 terms of the list of numbers whose nth term is given by an = 3 + 2n October 4, 2020 Category: Chapter 5 - Arithmetic Progressions [...]

When two blocks connected by a spring move towards each other under mutual interaction, a. Their velocities are equal and opposite b. Their accelerations are equal and opposite a. Their velocities are equal and opposite b. Their accelerations are equal and opposite When two blocks connected by a spring move towards each other under mutual [...]

Select the correct option(s). a. A single external force acting on a particle necessarily changes its momentum and kinetic energy. b. A single external force acting on a particle necessarily changes Select the correct option(s). a. A single external force acting on a particle necessarily changes its momentum and kinetic energy. b. A single external [...]

Mark the correct statement(s). a. Total work done by internal forces of a system on the system is always zero. b. Total work done by internal forced of a system on the system is sometimes zero. Mark the correct statement(s). a. Total work done by internal forces of a system on the system is always [...]

Mark the correct statement(s). a. The work-energy theorem is valid only for particles b. The work-energy theorem is an invariant law of physics. Mark the correct statement(s). a. The work-energy theorem is valid only for particles b. The work-energy theorem is an invariant law of physics. October 4, 2020 Category: Uncategorised (JEE Advanced Physics by [...]

Find the sum of (i) the first 1000 positive integers (ii) the first n positive integers Find the sum of (i) the first 1000 positive integers (ii) the first n positive integers October 4, 2020 Category: Chapter 5 - Arithmetic Progressions , Maths , NCERT Class 10 ,