NEET (UG) entrance exam Question Bank Solutions for Physics

The dimensional formula for latent heat is ______.

If area (A), velocity (V) and density (p) are taken as fundamental units, what is the dimensional formula for force?

Two circular coils have their centres at the same point. The mutual inductance between them will be maximum when their axes ______

In a double slit experiment light has a frequency of 6 × 10¹⁴ s^-1. The distance between the centres of adjacent bright fringes is 0.75 mm."What is the distance between the slits if the screen is 1.5 m away?

A thin mica sheet of thickness 2 × 10^-6 m and refractive index (µ = 1.5) is introduced in the path of the first wave. The wavelength of the wave used is 5000 Å. The central bright maximum will shift ______.

A small block slides down on a smooth inclined plane, starting from rest at time t = 0. Let S_n be the distance travelled by the block in the interval t = n − 1 to t = n. Then, the ratio `("S"_"n")/("S"_("n" + 1))` is ______.

Two conducting circular loops of radii R₁ and R₂ are placed in the same plane with their centres coinciding. If R₁ > > R₂, the mutual inductance M between them will be directly proportional to ______.

A small block slides down on a smooth inclined plane, starting from rest at time t = 0. Let S_n be the distance travelled by the block in the interval t = n − 1 to t = n. Then, the ratio `"S"_"n"/"S"_("n" + 1)` is ______

Two conducting circular loops of radii R₁ and R₂ are placed in the same plane with their centres coinciding. If R₁ >> R₂, the mutual inductance M between them will be directly proportional to ______.

A particle shows distance-time curve as shown in the figure. The maximum instantaneous velocity of the particle is around the point

A metal plate measuring 1 cm × 20 cm × 40 cm is embedded with a side of 20 cm × 1 cm into a wall at one end and is pulled by a force 1.6 × 10⁶ N parallel to the 1 cm side at the other end. The angle through which the plate is turned is (11 = 40 × 10⁹ Pa). 

Two drops of equal size are falling vertically through the air with a constant terminal velocity of 0.15 cm/s. What should be the velocity, if these drops coalesce to form one drop? 

A heavy uniform chain lies on a horizontal table. If the coefficient of friction between the chain and the table is 0.25, then the maximum fraction of the length of the chain that can hang over one edge of the table is

A quarter horse power motor runs at a speed of 600 r.p.m. Assuming 40% efficiency, the work done by the motor in one rotation will be

A transistor is

Which of the following substances (A, B and C) has the highest specific heat? 

Heat engine transfers ______. 

A uniform metal chain is placed on a rough table such that one end of the chain hangs down over the edge of the table. When two-thirds of its chain length hangs over the edge the chain start sliding. Then the coefficient of static friction is:

An engine develops 20 kW power. How much time will it take to lift a mass of 200 kg to a height of 50 m? (g = 10 m/s²)

The earth's magnetic field at a certain place has a horizontal component 0.3 gauss and the total strength 0.5 gauss. The angle of dip is ______.