NEET (UG) entrance exam Question Bank Solutions for Physics

A ship A is moving Westwards with a speed of 10 km h^–1 and a ship B which is at 100 km South of A, is moving Northwards with a speed of 10 km h^–1. The time after which the distance between them becomes shortest, is

The force exerted by liquid perpendicular to the surface of the body is equal to the product of ______ at that point. 

Wavefront means

The energy band gap is maximum in

The electrons in the conduction band of a semiconductor are

The length of a needle floating on water is 2 cm. The additional force due to surface tension required to pull the needle out of water will be (S.T. of water = 7.0 × 10⁻² N/m). 

To verify Kepler's third law graphically four students plotted graphs. Student A plotted a graph of T (period of revolution of planets) versus r (average distance of planets from the sun) and found the plot is straight line with slope 1.85. Student B plotted a graph of T² v/s r³ and found the plot is straight line with slope 1.39 and negative Y-intercept. Student C plotted graph of log T v/s log r and found the plot is straight line with slope 1.5. Student D plotted graph of log T v/s log r and found the plot is straight line with slope 0.67 and with negative X-intercept. The correct graph is of student

The degree of hotness and coldness of a body is called ______.  

Thermodynamics is ______. 

For the propagation of longitudinal waves, the medium must have

1. elasticity
2. mass
3. inertia
4. force of cohesion

The capacitance of a parallel plate capacitor is 60 µF. If the distance between the plates is tripled and area doubled then new capacitance will be ______.

The perfect gas equation for 4 g of hydrogen gas is ______. 

Suppose that two objects A and B are moving with velocities `vec("V"_"A")` and `vec("V"_"B")` (each with respect to some common frame of reference). Let `vec("V"_"AB")` represents the velocity of A with respect to B then:

Five capacitor each of capacitance value C are connected as shown in the figure. The ratio of capacitance between P to R, and the capacitance between P and Q is ______.

Two spherical conductors A and B of radii a and b(b > a) are placed concentrically in the air. B is given a charge +Q and A is earthed. The equivalent capacitance of the system is ______.

The radius of a sphere of capacity 1 microfarad in the air is ______

A steady current of 1 A is flowing through the conductor. The number of electrons flowing through the cross-section of the conductor in 1 second is ______

The magnetic flux linked with a coil in Wb is given by the equation Φ = 3t² + 4t + 9. Then the magnitude of induced emf at t = 2 sec will be ______.

A planet revolves in an elliptical orbit around the sun. The semi-major and minor axes are a and b, then the time period is given by:

A rod has a radius of 100 mm and a length of 10 cm. A 100 N force compress along its length. Calculate the longitudinal stress developed in the rod.