List of top Physics Questions asked in NEET (UG)

With what velocity should a particle be projected so that its height becomes equal to radius of earth?

A particle is projected making an angle of 45$^{\circ}$ with horizontal having kinetic energy K. The kinetic energy at highest point will be

For a coil having L = 2 mH, current flow through it is $I= t^2e^{-l}$ then, the time at which emf become zero

A disc is rolling the velocity of its centre of mass is Vcm then which one will be correct

A photo-cell is illuminated by a source of light,which is placed at a distance d from the cell.If the distance become d/2, then number of electrons emited per second will be

If a ^b aX species emits firstly a positron, then two α and two β and at last one α is also after intially it fainally convets into stable ^c dY species so correct relation will be

250 N force is required to raise 75 kg mass from a pulley. If rope is pulled 12 m then the load is lifted to 3m, the efficiency of pulley system will be

A capacitor of capacity C and reactance X if capacitance and frequency become double then

For a common emitter circuit if \(\frac{IC}{IE}=0.98\) then current gain for common emitter circuit will be

Among which the magnetic susceptibility does not depend on the temperature

Two particles having mass M and m are moving in a circular path having radius R and r. If their time period are same then the ratio of angular velocity will be

A ray of light travelling in air have wavelength $\lambda$ , frequency n , velocity v and intensity I. If this ray enters into water then these parameters are ${\lambda} $' n ' , v ' and I' respectively. Which relation is correct from following?

Tangent galvanometer is used to measure

A given ray of light suffers minimum deviation in an equilateral prism P. Additional prisms Q and R of identical shape and of the same material as P are now added as shown in the figure. The ray will suffer

In Thomson mass spectrograph $\vec{E}\perp \vec{B} $ then the velocity of electron beam will be

Half life of radioactive element is 12.5 Hour and its quantity is 256 gm. After how much time its quantity will remain 1 gm : -

A particle is thrown vertically upward. Its velocity at half of the height is 10 m/s. Then the maximum height attained by it (g = 10 m/s^2 )

Copper and silicon is cooled from 300 K to 60 K, the specific resistance

If specific resistance of a potentiometer wire is $10^{-7}\, \Omega m$ and current flow through it is 0.1 amp., cross-sectional area of wire is $10^{-6}\, m^2$ then potential gradient will be

The dimensions of Planck constant equals to that of

A black body has wavelength $\lambda_m$ corresponding to maximum energy at 2000 K. Its wavelength corresponding to maximum energy at 3000 K will be:

An electron having mass m and kinetic energy E enter in uniform magnetic field B perpendicularly, then its frequency will be

If the energy of a hydrogen atom in nth orbit is $E_n$, then energy in the nth orbit of a singly ionized helium atom will be

A cylindrical rod having temperature T1 and T2 at its end. The rate of flow of heat Q1 cal/sec. If all the linear dimension are doubled keeping temperature remain const. then rate of flow of heat Q2 will be

Two waves having equation $x_1=a \sin(\omega t-kx+\phi_1),$ $ x_2=a \sin (\omega t-kx +\phi_2)$ If in the resultant wave the frequency and amplitude remain equal to amplitude of superimposing waves, the phase difference between them is