SRMJEE Mock Test (Engg) - 13 - JEE MCQ

A weightless thread can bear tension upto 3.7 kg wt. A stone of mass 500 gms is tied to it and revolved in a circular path of radius 4 m in a vertical plane. If g = 10 ms⁻², then the maximum angular velocity of the stone will be

The phase difference between the current and voltage at resonance is

What is immaterial for an electric fuse wire

A source of light is placed at a distance of 1 m from a photocell and the cut off potential is found to be V₀. If the lamp is now replaced at a distance of 2 m, the cut off potential will become

A wire is subjected to a longitudinal strain of 0.05. If its material has a Poisson's ratio of 0.25, the lateral strain experienced by it is.....

A parallel plate capacitor is first charged and then a dielectric slab is introduced between the plates. The quantity that remains unchanged is

The programming language used for a microprocessor is known as:

A uniform chain of length L changes partly from a table which is kept in equilibrium by friction. The maximum length that can Withstand without slipping is l, then coefficient of friction between the table and the chain is

At what distance from the centre of the earth, the value of acceleration due to gravity g will be half that on the surface (R = radius of earth)

Two different gases having the same temperature T, same pressure P and same volume V are mixed. If the mixture is at the same temperature T and occupies a volume V, then pressure of the mixture is

A partition wall has two layers A and B in contact, each made of different material. They have the same thickness but the thermal conductivity of layer A is twice that of layer B. If the steady state temperature difference across the wall is 60 K, then the corresponding difference across the layer A is

The angular amplitude of a simple pendulum is θ₀ . The maximum tension in its string will be

A ball is dropped on to the floor a height of 10 m. It rebounds to a height of 2.5 m. If the ball is in contact with the floor for 0.01 seconds, what is the average acceleration during contact?

A bar magnet is held perpendicular to a uniform magentic field. If the torque acting on the magnet is to be halved by rotating it, then angle by which it is to be rotated, is

The force of cohesion is maximum in

The force required to keep a body in uniform circular motion is

A solenoid consists of 100 turns of wire and has a length of 10.0 cm. The magnetic field inside the solenoid when it carries a current of 0.500 A will be

If rope of lift breaks suddenly, the tension exerted by the surface of lift (a=acceleration of lift)

A train is moving with a constant velocity.If a pendulum is hanging from its roof, then its time period will

Iron scrapping are loaded in a ship. Now all the iron pieces are poured in water, then level of water will

Two projectiles are fired from the same point with the same speed at angles of projection 60° and 30° respectively. Which one of the following is true?

Light appears to travel in a straight line, because

The acceleration of a solid cylinder rolling down an inclined plane of inclination 30° is

A particle is acted upon by two forces of the same magnitude, one along the x-axis and the other along the y-axis. In order to keep it in equilibrium, a third force must be applied

A drop of water breaks into two droplets of equal size. In this process, which of the following statement is correct

A 4μF conductor is charged to 400 volts and then its plates are joined through a resistance of 1 KΩ. The heat produced in the resistance is

A container that suits the occurrence of an isothermal process should be made of