List of top Physics Questions asked in NEET (UG)

A spherical ball is dropped in a long column of a highly viscous liquid. The curve in the graph shown, which represents the speed of the ball (v) as a function of time (t) is:
In the given circuits (a), (b) and (c), the potential drop across the two p-n junctions are equal in:
A shell of mass m is at rest initially. It explodes into three fragments having mass in the ratio \(2:2:1\). If the fragments having equal mass fly off along mutually perpendicular directions with speed v, the speed of the third (lighter) fragment is
The displacement time graphs of two moving particles make angles of \(30\degree\) and \(45\degree\) with the x-axis as shown in the figure. The ratio of their respective velocity is
In half wave rectification, if the input frequency is 60 Hz, then the output frequency would be:
When light propagates through a material medium of relative permittivity єr, and relative permeability єr, the velocity of light, v is given by (c - velocity of light in vacuum)
Two hollow conducting spheres of radii R1 and R2 (R1 >>R2) have equal charges. The potential would be:
An ideal gas undergoes four different processes from the same initial state as shown in the figure below. Those processes are adiabatic, isothermal, isobaric and isochoric. The curve which represents the adiabatic process among 1, 2, 3 and 4 is:
The angular speed of a flywheel moving with uniform angular acceleration changes from 1200 rpm to 3120 rpm in 16 seconds. The angular acceleration in rad/s2 is:
The ratio of the radius of gyration of a thin uniform disc about an axis passing through its centre and normal to its plane to the radius of gyration of the disc about its diameter is
The ratio of the distance travelled by a freely falling body in the 1st, 2nd, 3rd and 4th second
Two objects of mass 10 kg and 20 kg respectively are connected to the two ends of a rigid rod of length 10 m with negligible mass. The distance of the center of mass of the system from the 10 kg mass is:
Two objects of mass 10 kg and 20 kg
Let \(T_1\) and \(T_2\) be the energy of an electron in the first and second excited states of the hydrogen atom, respectively. According to Bohr’s model of an atom; the ratio T1:T2 is:
The graph which shows the variation of the de Broglie wavelength (λ) of a particle and its associated momentum (p) is
Find the value of the angle of emergence from the prism. The refractive index of the glass is \(\sqrt3\)
angle of emergence from the prism
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)
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)
The electron concentration in an $n$-type semiconductor is the same as hole concentration in a $p$-type semiconductor. An external field (electric) is applied across each of them. Compare the currents in them.
In a potentiometer circuit a cell of EMF $1.5\, V$ gives balance point at $36\, cm$ length of wire. If another cell of EMF $2.5\, V$ replaces the first cell, then at what length of the wire, the balance point occurs ?
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 $\left. g =10\, m / s ^{2}\right)$
An infinitely long straight conductor carries a current of $5\, A$ as shown. An electron is moving with a speed of $10^{5} m / s$ parallel to the conductor. The perpendicular distance between the electron and the conductor is $20\, cm$ at an instant. Calculate the magnitude of the force experienced by the electron at that instant.
If E and G respectively denote energy and gravitational constant, then \(\frac{E}{G}\) has the dimensions
A thick current carrying cable of radius $'R'$ carries current $'I'$ uniformly distributed across its cross-section. The variation of magnetic field $B ( r )$ due to the cable with the distance $'r'$ from the axis of the cable is represented by :
$A$ 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 :