List of top Physics Questions asked in NEET (UG)

a-particle consists of:

In which of the following processes, heat is neither absorbed nor released by a system?

At a point A on the earth's surface the angle of dip, \(\delta=+25°\). At a point B on the earth's surface the angle of dip, \(\delta=-25°\). We can interpret that: 

Increase in temperature of a gas filled in a container would lead to:

Which of the following acts as a circuit protection device?

A cylindrical conductor of radius R is carrying a constant current. The plot of the magnitude of the magnetic field, B with the distance, d, from the centre of the conductor, is correctly represented by the figure :

A hollow metal sphere of radius R is uniformly charged. The electric field due to the sphere at a distance r from the centre :

A 800 turn coil of effective area \(0.05\ m^2\) is kept perpendicular to a magnetic field \( 5 \times 10^{-5} T.\) When the plane of the coil is rotated by \(90\degree\) around any of its coplanar axis in \(0.1 s\), the emf induced in the coil will be:

A force\( F=20+10y \)acts on a particle in \(y-\)direction where \(F\) is in newton and y in meter. Work done by this force to move the particle from \(y=0\) to \( y=1\) m is: 

The work done to raise a mass m from the surface of the earth to a height h, which is equal to the radius of the earth, is:

Two particles \(A\) and \(B\) are moving in uniform circular motion in concentric circles of radii \(ra\) and \(rb\) with speed \(\upsilon_A\)and \(\upsilon_B\)respectively. Their time period of rotation is the same. The ratio of angular speed of \(A\) to that of \(B \)will be: 

The radius of circle, the period of revolution, initial position and sense of revolution are indicated in the fig.

y- projection of the radius vector of rotating particle P is:

Ionized hydrogen atoms and a-particles with same momenta enters perpendicular to a constant magnetic field, B. The ratio of their radii of their paths \( r_H: r_\alpha\) will be:

Two point charges A and B, having charges. +Q and -Q respectively, are placed at certain distance apart and force acting between them is F. If 25% charge of A is transferred to B, then force between the charges becomes:

The reading of an ideal voltmeter in the circuit shown is :

The relations amongst the three elements earth's magnetic field, namely horizontal component H, vertical component V and dip d are, (B$_E$ = total magnetic field)

A person travelling in a straight line moves with a constant velocity v1 for certain distance 'x' and with a constant velocity $v_2$ for next equal distance. The average velocity v is given by the relation

The correct Boolean operation represented by the circuit diagram drawn is :

The main scale of a vernier callipers has n divisions/cm. n divisions of the vernier scale coincide with (n - 1) divisions of main scale. The least count of the vernier callipers is,

The metre bridge shown is in balance position with $\frac{P}{Q} = \frac{l_{1}}{l_{2}}$ . If we now interchange the positions of galvanometer and cell, will the bridge work ? If yes, what will be balanced condition ?

Two bullets are fired horizontally and simultaneously towards each other from roof tops of two buildings 100 m apart and of same height of 200m with the same velocity of 25 m/s. When and where will the two bullets collides. (g =10 m/s$^2$)

A body weighs $200\,N$ on the surface of the earth How much will it weigh half way down to the centre of the earth ?

The time period of a geostationary satellite is 24 h, at a height 6R (R is radius of earth) from surface of earth. The time period of another satellite whose height is 2.5 R from surface will be,

The total energy of an electron in an atom in an orbit is $-3.4\,eV$ . Its kinetic and potential energies arc, respectively:

A bar AB of weight W rests like a ladder with upper end A against a smooth vertical wall and the lower end B on a rough horizontal plane. If the bar is just on the point of sliding, then the reaction at A is equal to (given that $\mu$ is coefficient of friction) :