AIPMT

A gun weighing 4 kg fires a bullet of mass 10⁻² kg with a speed of 6 × 10² m/s. The kinetic energy of the gun is

A gun weighing 4 kg fires a bullet of mass 10⁻² kg with a speed of 6 × 10² m/s. The kinetic energy of the gun is

A wire of length 1 m is suspended from a support. Its length become 1.5 m when a block of mass .2 kg is loaded. What is the mass to be loaded to make the length 2 m?

A wire of length 1 m is suspended from a support. Its length become 1.5 m when a block of mass .2 kg is loaded. What is the mass to be loaded to make the length 2 m?

A 40 cm long capillary tube is dipped in water. The water rises up to a height of 12 cm because of capillary action. What will be the length of water column if the experiment is conducted in a freely falling elevator?

A 40 cm long capillary tube is dipped in water. The water rises up to a height of 12 cm because of capillary action. What will be the length of water column if the experiment is conducted in a freely falling elevator?

The ratio of terminal velocities of two rain drops is 16 : 25. The ratio of their volumes is

The ratio of terminal velocities of two rain drops is 16 : 25. The ratio of their volumes is

An iron ball and a aluminum ball of same diameter are dropped into a deep lake. Which ball will reach the bottom first?

An iron ball and a aluminum ball of same diameter are dropped into a deep lake. Which ball will reach the bottom first?

When an electrical appliance is switched on, it responds almost immediately, because :

When an electrical appliance is switched on, it responds almost immediately, because :

The  following  figures show the direction of magnetic field in a given area. The flux is maximum in

The  following  figures show the direction of magnetic field in a given area. The flux is maximum in

By inserting a dielectric between the plates of a capacitor, the capacitance becomes  8/5 times of its original value. If d/2 be the thickness of the dielectric, the dielectric constant of the slab is

By inserting a dielectric between the plates of a capacitor, the capacitance becomes  8/5 times of its original value. If d/2 be the thickness of the dielectric, the dielectric constant of the slab is

Four metal plates 1, 2, 3 and 4 are arranged as shown in the figure below. The area of each plate is A and the separation between the  plates is d. The capacitance of the arrangement is

Four metal plates 1, 2, 3 and 4 are arranged as shown in the figure below. The area of each plate is A and the separation between the  plates is d. The capacitance of the arrangement is

Which of the following is true if in an orbiting satellite, the radius of orbit is decreased? 

Which of the following is true if in an orbiting satellite, the radius of orbit is decreased? 

Two containers of volume 5 m³ and 8 m³ contain an ideal gas at  pressures of 100 Pa and 50 Pa respectively. Under isothermal condition they are joined by a tube of negligible volume. If the gases flow from one container to the other, the final pressure will be

Two containers of volume 5 m³ and 8 m³ contain an ideal gas at  pressures of 100 Pa and 50 Pa respectively. Under isothermal condition they are joined by a tube of negligible volume. If the gases flow from one container to the other, the final pressure will be

A seconds pendulum is taken to a place at a height of 4 km from sea level. The error shown is the length of the day is

A seconds pendulum is taken to a place at a height of 4 km from sea level. The error shown is the length of the day is

A projectile has initial velocity u= (√3i+j)m/s. Which of the following represent the equation of trajectory of the projectile?

A projectile has initial velocity u= (√3i+j)m/s. Which of the following represent the equation of trajectory of the projectile?

Which of the statements is correct for p-type semiconductor?

Which of the statements is correct for p-type semiconductor?

Which of the following gates will have an output of 1?

Which of the following gates will have an output of 1?

When a plane wave travels in a medium the displacement Y of a particle located at x at time t is Y = P sin(qt – rx) where p, q and r are constants. Which of the following statements is not true?

When a plane wave travels in a medium the displacement Y of a particle located at x at time t is Y = P sin(qt – rx) where p, q and r are constants. Which of the following statements is not true?

The motion of a body is given by  where v is the velocity in m/s and t is time in sec. At t = 0, the body is at rest. Which of the following is not true ?

The motion of a body is given by  where v is the velocity in m/s and t is time in sec. At t = 0, the body is at rest. Which of the following is not true ?

A point object is placed at the centre of a glass sphere of diameter 10 cm and refractive index 1.5. Find the distance of the virtual image from the surface of the sphere.

A point object is placed at the centre of a glass sphere of diameter 10 cm and refractive index 1.5. Find the distance of the virtual image from the surface of the sphere.

In double slit experiment, if width of one slit is made twice the other, the intensity of minima in interference pattern will

In double slit experiment, if width of one slit is made twice the other, the intensity of minima in interference pattern will

A lens of refractive index μ is put in a liquid of refractive index μ'. If focal length of lens in air is f, its focal length in liquid will be

A lens of refractive index μ is put in a liquid of refractive index μ'. If focal length of lens in air is f, its focal length in liquid will be

A circular ring and disc have same mass m and same radius r. The ratio of radii of gyration around their respective axes is

A circular ring and disc have same mass m and same radius r. The ratio of radii of gyration around their respective axes is

Two SHM’s acts at right angles to each other. If the amplitudes are equal and  phase difference is 90°, the resultant motion represents a

Two SHM’s acts at right angles to each other. If the amplitudes are equal and  phase difference is 90°, the resultant motion represents a

The ratio of velocity of sound in Nitrogen (γ = 7/5) to that in helium (γ = 5/3) at the same temperature is

The ratio of velocity of sound in Nitrogen (γ = 7/5) to that in helium (γ = 5/3) at the same temperature is

Which of the following is true regarding beats?

Which of the following is true regarding beats?

A stone is tied to a string of length ℓ is whirled in a vertical circle with the other end of the string at the centre. At a certain instant of time, the stone is at its lowest position with speed u. The magnitude of change in velocity as it reaches a position where the string is horizontal is

A stone is tied to a string of length ℓ is whirled in a vertical circle with the other end of the string at the centre. At a certain instant of time, the stone is at its lowest position with speed u. The magnitude of change in velocity as it reaches a position where the string is horizontal is