JIPMER Full Mock Test - 7 - NEET MCQ

A wire of resistance R is cut into 'n' equal parts. These parts are then connected in parallel. The equivalent resistance of the combination will be

A steady current ι is flowing through a conductor of uniform cross-section. Any segment of the conductor has

The power factor of an a.c. circuit having resistance R and inductance L connected in series to an a.c. source of angular frequency ω is

Two condensers, one of capacity C and the other of capacity C/2 , are connected to a V volt battery, as shown.

The work done in charging fully both the condensers is

A transformer is used to reduce the mains supply of 220 V to 11 V. If the currents in primary and secondary coils are 5 A and 90 A respectively, efficiency of transformer is

Which is having minimum wavelength:

A work of 100 J is done in moving a charge of -5C from infinity to a particular point in an electrostatic field. The potential of this point is

Three charges, each equal to +q, are placed at the corners of an equilateral triangle. If the force between any two charges is F, then net force on either charge will be

The coefficient of friction between a body and the surface of an inclined plane at 45º is 0.5. If g=9.8 m/s², the acceleration of the body downwards in m/s² is

A satellite revolves around the earth in an elliptical orbit. Its speed

Out of following, the only correct statement about satellites is

Newton's law of cooling, holds good only if the temperature difference between the body and the surroundings is

Two beams of light having intensities I and 4I interfere to produce a fringe pattern on a screen. The phase difference between the beams is π/2 at point A and π at point B. Then the differnce between the resultant intensities at A and B is

The average kinetic energy of a gas molecules at 27ºC is 6.3×10⁻²¹J. Its average kinetic energy at 227ºC will be​

The magnetic field d̅B due to a small current element dl at a distance r and element carrying current i is​

Magnetic field induction at one end on the axis of a long solenoid having n turns per unit lengh and carrying i ampere current is

A potential difference of 2V exists across a potentiometer wire of 2m length. When the potential difference across a 2Ω resistance of a second circuit is measured by this potentiometer wire, it amounts to 5mm balancing length. The current in the second circuit is

A bar magnet is oscillating in earth's magnetic field with a period T. What happens to its period of motion, if its mass is quadrupled ?

The unit of magnetic permeability is​

A magnetic needle suspended freely orients itself

A body floats in a liquid contained in a beaker. If the whole system falls under gravity, then the upthrust on the body due to liquid is

A column of water 60 cm high supports a column of an unknown liquid of density 1500 kg-m⁻³. The height of liquid column is (Density of water = 1000 kg-m⁻³)

A cube is subjected to a uniform volumatric compression. If side of cube decreases by 1%, then its bulk strain is

Moment of inertia of a uniform circular disc about a diameter is I. Its moment of inertia about an axis perpendicular to its plane and passing through a point on its rim will be

Acceleration of a particle changes when

The number of neutrons in a chain reaction increases in

What is the Q-value of the reaction
p + ⁷Li → ⁴He + ⁴He
The atomic masses of ¹H , ⁴He and ⁷Li are 1.007825 u, 4.002603 u and 7.016004 u respectively