JIPMER Physics Mock Test - 8 - NEET MCQ

Two capacitors when conected in series have a capacitance of 3 μF, and when connected in parallel have a capacitance of 16 μF. Their individual capacities are

A series combination of two resistors 1 Ω each is connected to a 12 V battery of internal resistance 0.4 Ω. The current flowing through it will be

A fan works on the principle of

In the circuit,the galvanometer G shows zero deflection. If the batteries A and B have negligible internal resistance, the value of the resistor R will be

Infrared radiation is detected by

A smooth hemispherical bowl of radius a, whose lowest-point is A, is fixed with its rim uppermost and horizontal. A particle of mass m is projected along the inner surface of the bowl with a speed of 2 √ga from A, so that its motion is in the vertical plane through A. Then the reaction between the particle and the bowl when the particle is at a vertical height 2a/3 above A, is

Three capacitors of capacitances 2 μF, 4 μF and 6 μF are connected in a parallel combination. Their equivalent capacitance will be

A charged sphere of diameter 4 cm has a charge density of 10^-4 cou∕cm² . The work done in joules when a charge of 40 nano-coluombs is moved from infinite to a point which is at a distance of 2 cm from the surface of the sphere, is

Consider a satellite going round the earth in an orbit. Which of the following statements is wrong ?

A satellite is placed in a circular orbit around earth at such a height that it always remains stationary with respect to earth surface. In such case, its height from the earth surface is

A body takes 1 1/3 times as much time to slide down a rough inclined plane as it takes to slide down an identical but smooth inclined plane. If the angle of inclination of the inclined plane is 45^o, the coefficient of friction is

One feels hotter at the top of a flame than the sides because of

A vessel containing 10 L of air at atmospheric pressure 760 mm of Hg is connected with an evacuated vessel of capacity 9 L. The resultant air pressure will be

In Young's double slit experiment, distance between slits is 0.28 mm and distance between slits and screen is 1.4 m. Distance between central bright fringe and third bright fringe is 0.9 cm. What is the wavelength of used light?

A straight wire carrying current I is turned into a circular loop. If the magnitude of magnetic moment associated with it in M.K.S. unit is M, the length of wire will be

The cyclotron frequency of an electron gyrating in a magnetic field of 1 T is

Lorentz force can be calculated by using the formula

If a bar magnet of moment μ is suspended in a uniform magnetic field B and it is given an angular deflection ' θ ' w.r.t its equilibrium position, the restoring torque on magnet is

Two similar bar magnets P and Q each of magnetic moment M are taken. If P is cut along its axial line and Q is cut along its equatorial line, all the four pieces obtained have each of

A short magnetic needle is pivoted in a uniform magnetic field of strength 1 T. When another magnetic field of strength √3 T is applied to the needle in a perpendicular direction, then the angle through which the needle will deflect, is

What should be the minimum average velocity of water in a small tube of radius 5 mm, so that the flow is just turbulent? (Given: Viscosity of water=0.01 poise and density of water = 1000 kg-m^-3)

A capillary tube of radius r is immersed in water and water rise in it to a height h. Mass of water in capillary tube is m. If the radius of the tube is doubled, the mass of water that will rise in capillary will be

A copper wire of length 4 m and area of cross-section 1.2 cm² is stretched with a force of 4.8 x 10³ N. If the Young's modulus for copper is 1.2 x 10¹¹ N-m^-2, then increase in the length of the wire will be

The rotational kinetic energy of a body is E and its moment of inertia is I. The angular momentum is

A body A moves with a uniform acceleration a and zero initial velocity. Another body B, starts from the same point moves in the same direction with a constant velocity ν. The two bodies meet after a time t. The value of t is

A man is at rest in the middle of a pond on perfectly smooth ice. He can get himself to the shore by making use of Newton's

The rest energy involved in a mass of one atomic mass unit is ---- eV.