List of top Physics Questions asked in NEET (UG)

Twenty seven drops of same size are charged at 220 V each. They combine to form a bigger drop. Calculate the potential of the bigger drop

A body is executing simple harmonic motion with frequency ‘n’, the frequency of its potential energy is

In the product $\vec{F}=q(\vec{v}\times\vec{b})$
=$q\vec{v}\times(B\hat i+B \hat j+B_0\hat k)$
For q=1 and $\vec v = 2\hat i+4\hat j+6\hat k$ and $\vec F=4\hat i-20\hat j+12\hat k$
What will be the complete expression for $\vec B$ ?

An inductor of inductance L, a capacitor of capacitance C and a resistor of resistance ‘R’ are connected in series to an ac source of potential difference ‘V’ volts as shown in the figure. The potential difference across L, C and R is 40 V, 10 V and 40 V, respectively. The amplitude of current flowing through LCR series circuit is 10√2 A. The impedance of the course is

A car starts from rest and accelerates at 5 m/s² . At t=4 s, a ball is dropped out of a window by a person sitting in the car. What is the velocity and acceleration of the ball at t=6 s? (Take g=10 m/s²)

A cup of coffee cools from 90°C to 80°C in t minutes, when the room temperature is 20°C. The time taken by a similar cup of coffee to cool from 80°C to 60°C at a room temperature same at 20°C is

A uniform conducting wire of length 12a and resistance ‘R’ is wound up as a current-carrying coil in the shape of,
(i) an equilateral triangle of side ‘a’.
(ii) a square of side ‘a’.
The magnetic dipole moments of the coil in each case respectively are:

Column - I gives certain physical terms associated with the flow of current through a metallic conductor. Column - II gives some mathematical relations involving electrical quantities. Match Column - I and Column - II with appropriate relations

Column - I		Column - II
(A)	Drift Velocity	(P)	$\frac{m}{ne^2\rho}$
(B)	Electrical Resistivity	(Q)	$nev_d$
(C)	Relaxation Period	(R)	$\frac{eE}{m}\tau$
(D)	Current Density	(S)	$\frac{E}{J}$

For a plane electromagnetic wave propagating in x-direction, which one of the following combination gives the correct possible directions for electric field (E) and magnetic field (B) respectively

Water falls from a height of 60 m at the rate of 15 kg/s to operate a turbine. The losses due to frictional force are 10% of the input energy. How much power is generated by the turbine (g=10 m/s²)

Match Column - I and Column - II and choose the correct match from the given choices.

Column - I		Column - II
(A)	Root mean square speed of gas molecules	(P)	$\frac{1}{3}$ nmv-²
(B)	The pressure exerted by the ideal gas	(Q)	$\sqrt{\frac{3\,RT}{M}}$
(C)	The average kinetic energy of a molecule	(R)	$\frac{5}{2}RT$
(D)	The total internal energy of 1 mole of a diatomic gas	(S)	$\frac{3}{2}kBT$

A particle of mass ‘m’ is projected with a velocity v=kV_e(k < 1) from the surface of the earth. (V_e=escape velocity) The maximum height above the surface reached by the particle is

A spring is stretched by 5 cm by a force of 10 N. The time period of the oscillations, when a mass of 2 kg is suspended by it, is

A particle is released from height S from the surface of the Earth. At a certain height, its kinetic energy is three times its potential energy. The height from the surface of the earth and the speed of the particle at that instant are respectively

The number of photons per second on average emitted by the source of monochromatic light of wavelength 600 nm, when it delivers the power of 3.3×10⁻³ watt will be : (h=6.6×10⁻³⁴ Js)

Two charged spherical conductors of radius R₁ and R₂ are connected by a wire. Then the ratio of surface charge densities of the spheres (σ₁ /σ₂ ) is

A ball of mass 0.15 kg is dropped from a height 10 m, strikes the ground and rebounds to the same height. The magnitude of impulse imparted to the ball is (g=10 m/s2) nearly

Column - I gives certain physical terms associated with flow of current through a metallic conductor. Column - II gives some mathematical relations involving electrical quantities. Match Column - I and Column - II with appropriate relations.

Column I		Column II
A	Drift Velocity	P	$\frac{ m }{ ne ^{2} \rho}$
B	Electrical Resistivity	Q	$ne v_{ d }$
C	Relaxation Period	R	$\frac{ e E }{ m } \tau$
D	Current Density	S	$\frac{ E }{ J }$

A car starts from rest and accelerates at $5\, m / s ^{2}$ At $t=4\, s$, a ball is dropped out of a window by a person sitting in the car. What is the velocity and acceleration of the ball at $t =6\, s$ ? (Take $\left. g =10\, m / s ^{2}\right)$

Polar molecules are the molecules:

$A$ particle moving in a circle of radius $R$ with a uniform speed takes a time $T$ to complete one revolution. If this particle were projected with the same speed at an angle ' $\theta$ ' to the horizontal, the maximum height attained by it equals $4 R$. The angle of projection, $\theta$, is then given by :

A lens of large focal length and large aperture is best suited as an objective of an astronomical telescope since:

A screw gauge gives the following readings when used to measure the diameter of a wire Main scale reading : $0\, mm$ Circular scale reading : $52$ divisions Given that $1\, mm$ on main scale corresponds to $100$ divisions on the circular scale. The diameter of the wire from the above data is :

If force $[ F ]$, acceleration $[ A ]$ and time $[ T ]$ are chosen as the fundamental physical quantities. Find the dimensions of energy.

The equivalent capacitance of the combination shown in the figure is :