List of top Physics Questions asked in NEET (UG)

An electric dipole is placed at an angle of 30° with an electric field of intensity 2x105 NC-1. It experiences a torque equal to 4 Nm. Calculate the magnitude of charge on the dipole, if the dipole length is 2cm.

Resistance of a carbon resistor determined from colour codes is (22000±5%)Ω. The colour of third band must be:

For the following logic circuit, the truth table is:

logic circuit

The radius of innermost orbit of a hydrogen atom is 5.3x10-11 m. What is the radius of the third allowed orbit of the hydrogen atom?

If \(∮_s\overrightarrow{E}.\overrightarrow{dS}=0\) over a surface, then:

The magnitude and direction of the current in the following circuit is

magnitude and direction of the current

The effective resistance of a parallel connection that consists of four wires of equal length, equal area of cross-section, and same material is 0.25 Ω. What will be the effective resistance if they are connected in series?

Match List - I with List - II:
 List - I (Electromagnetic Waves) List - II (Wavelength)
(a)AM radio waves(i)10-10 m
(b)Microwaves(ii)102 m
(c)Infrared Radiations(iii)10-2 m
Choose the correct answer from the options given below:
Two resistors of resistances, 100 Ω and 200 Ω are connected in parallel in an electrical circuit. The ratio of thermal energy developed in 100 Ω to that in 200 Ω in a given time is
The energy that will be ideally radiated by a 100 kW transmitter in 1 hour is:
A series LCR circuit with inductance 10 H, capacitance 10 μF, resistance 50 Ω is connected to an ac source of voltage, V =200 sin(100 t) volt. If the resonant frequency of the LCR circuit is vo and the frequency of the ac source is v, then:
The peak voltage of the ac source is equal to:
Plane angle and solid angle have:
The area of rectangular field (in m2) of length 55.3 m and breadth 25 m after rounding off the value for correct significant digits is:
Three resistors having resistances r1, r2 and r3 are connected as shown in the given circuit. The ratio \(\frac{i_3}{i_1}\) of currents in terms of resistances used in the circuit is
Three resistors
If a soap bubble expands, the pressure inside the bubble:
A long solenoid of radius 1 mm has 100 turns per mm. If 1 A current flows in the solenoid, the magnetic field strength at the centre of the solenoid is:
An electric lift with a maximum load of 2000 kg (lift + passengers) is moving up with a constant speed of 1.5 ms-1. The frictional force opposing the motion is 3000N. The minimum power delivered by the motor to the lift in watts is: (g =10 ms-2)
If the initial tension on a stretched string is doubled, then the ratio of the initial and final speeds of a transverse wave along the string is:
Two pendulums of length 121 cm and 100 cm start vibrating in phase. At some instant, the two are at their mean position in the same phase. The minimum number of vibrations of the shorter pendulum after which the two are again in phase at the mean position is:
A biconvex lens has radii of curvature, 20 cm each. If the refractive index of the material of the lens is 1.5, the power of the lens is:
A body of mass 60 g experiences a gravitational force of 3.0 N, when placed at a particular point. The magnitude of the gravitational field intensity at that point is:
A square loop of side 1 m and resistance 1 Ω is placed in a magnetic field of 0.5 T. If the plane of loop is perpendicular to the direction of magnetic field, the magnetic flux through the loop is
What is the correct expression for enthalpy?
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