AIPMT 2000

The potentiometer is best for measuring voltage, as

Who evaluated the mass of electron infirectly with help of charge

By photoelectric effect, Einstein proved

The frequency order for \(\gamma\)-rays (a), X-rays (b), UV rays (c) is

A charge Q is situated at the corner of a cube, the electric flux passed through all the six faces of the cube is

Electric field at centre O of semicircle of radius \(a\) having linear charge density \(\lambda\) given as

A tall man of height 6 feet, want to see his full image. Then required minimum length of the mirror will be

A bubble in glass slab (\(\mu\) = 1.5) when viewed from one side appears at 5 cm and 2 cm from other side, then thickness of slab is

Rainbow is formed due to

For a plano convex lens (\(\mu\) = 1.5) has radius of curvature 10 cm. It is silvered on its plane surface. Find focal length after silvering

For a planet having mass equal to mass of the earth but radius is one fourth of radius of the earth. Then escape velocity for this planet will be

A body of weight 72 N moves from the surface of earth at a height half of the radius of earth, then gravitational force exerted on it will be

Gravitational force is required for

To find out degree of freedom, the expansion is

The (W/Q) of a Carnot engine is 1/6, now the temperature of sink is reduced by 62oC, then this ratio becomes twice, therefore the initial temperature of the sink and source are respectively

Two masses as shown in the figure are suspended from a massless pulley. The acceleration of the system when masses are left free is

A body of mass 3 kg hits a wall at an angle of 60o and returns at the same angle. The impact time was 0.2 sec. The force exerted on the wall

The width of river is 1 km. The velocity of boat is 5 km/hr. The boat covered the width of river in shortest time 15 min. Then the velocity of river stream is

A man is slipping on a frictionless inclined plane and a bag falls down from the same height. Then the velocity of both is related as

Two projectiles of same mass and with same velocity are thrown at an angle 60o and 30o with the horizontal, then which will remain same

Motion of a particle is given by equation s = (3t3 + 7t2 + 14t + 8) m. The value of acceleration of the particle at t = 1 sec is

The magnetic field at centre, P will be

The bob of simple pendulum having length \(l\), is displaced from mean position to an angular position q with respect to vertical. If it is released, then velocity of bob at equilibrium position

Two masses \(M\)A and \(M\)B are hung from two strings of length \(l\)A and \(l\)B respectively. They are executing SHM with frequency relation \(f\)A = 2\(f\)B, then relation

A black body has maximum wavelength \(\lambda\)m at 2000 K. Its corresponding wavelength at 3000 K will be

For a hollow cylinder and a solid cylinder rolling without slipping on an inclined plane, then which of these reaches earlier

For the adjoining diagram, the correct relation between I1, I2, and I3 is, (I-moment of inertia)

As shown in the figure at point O a mass is performing vertical circular motion. The average velocity of the particle is increased, then at which point will the string break

The correct relation for \(\alpha\), \(\beta\) for a transistor

From the following diode circuit, which diode is in forward biased condition

The cations and anions are arranged in alternate form in

Which pair do not have equal dimensions ?

A string is cut into three parts, having fundamental frequencies n1, n2, n3 respectively. Then original fundamental frequency n related by the expression as

Two stationary sources each emitting waves of wavelength \(\lambda\), an observer moves from one source to another with velovcity u. Then number of beats heard by him

The equations of two waves acting in perpendicular directions are given as
x = \(a\)cos(\(\omega\)t +\(\delta\)) and y = \(a\)cos(\(\omega\)t + \(\alpha\)), where \(\delta\) = \(\alpha\) + \({\pi \over 2}\), the resultant wave repr...

If \(\overrightarrow F = \left( {60\widehat i + 15\widehat j - 3\widehat k} \right)\) N and \(\overrightarrow v = \left( {2\widehat i - 4\widehat j + 5\widehat k} \right)\) m/s, then instantaneous power is

A mass of 1 kg is thrown up with a velocity of 100 m/s. After 5 seconds, it explodes into two parts. One part of mass 400 g comes down with a velocity 25 m/s. The velocity of other part is (Take g = 10 ms\(-\)2)