List of top Physics Questions asked in NEET (UG)

The following figure shows a logic gate circuit with two inputs A and B and the output C. The voltage waveform of A, B and C are as shown below:
logic gate circuit with two inputs A and B and the output C

The logic circuit gate is:

The vectors \(\vec A\) and \(\vec B\) are such that: \(|\vec A+\vec B| = |\vec A-\vec B|\). The angle between the two vectors is:

Power dissipated across the 8 Ω resistor in the circuit shown here is 2 W. The power dissipated in watt units across the 3 Ω resistor is:
Power dissipated across the 8 Ω resistor in the circuit
In producing chlorine through electrolysis 100 W power at 125 V is being consumed. How much chlorine per min is liberated? ECE of chlorine is 0.367 x 10-6 kg/C:
In the circuit shown, if a conducting wire is connected between points A and B, the current in this wire will:
circuit shown, if a conducting wire is connected between points A and B, the current in this wire will
The potential energy of a long spring when stretched by 2 cm is U. If the spring is stretched by 8 cm the potential energy stored in it is:
A parallel plate air capacitor is charged to a potential difference of V volts. After disconnecting the charging battery the distance between the plates of the capacitor is increased using an insulating handle. As a result the potential difference between the plates:
300 J of work is done in sliding a 2 kg block up an inclined plane of height 10 m. Taking g =10 m/s2, work done against friction is :
When a charged particle moving with velocity is subjected to a magnetic field of induction \(\rightarrow\) B , the force on it is non-zero. This implies that :
A 0.5 kg ball moving with a speed of 12 m/s strikes a hard wall at an angle of 30° with the wall. It is reflected with the same speed and at the same angle. If the ball is in contact with the wall for 0.25 s, the average force acting on the wall is :
A microscope is focused on a mark on a piece of paper and then a slab of glass of thickness 3 cm and refractive index 1.5 is placed over the mark. How should the microscope be moved to get the mark in focus again?
A transistor is operated in common emitter configuration at constant collector voltage VC = 1.5 V such that a change in the base current from 100 µA to 150 µA produces a change in the collector current from 5 mA to 10 mA. The current gain (β) is :
In a discharge tube ionization of enclosed gas is produced due to collisions between :
A forward biased diode is :
Ionization potential of hydrogen atom is 13.6 eV. Hydrogen atoms in the ground state are excited by monochromatic radiation of photon energy 12.1 eV. According to Bohr's theory, the spectral lines emitted by hydrogen will be :
In a radioactive material the activity at time t1 is R1 and at a later time t2, it is R2. If the decay constant of the material is \(\lambda\), then :
A transistor-oscillator using a resonant circuit with an inductor L (of negligible resistance) and a capacitor C in series produce oscillations of frequency f. If L is doubled and C is changed to 4C, the frequency will be :
When a charged particle moving with velocity $\vec{v}$ is subjected to a magnetic field of induction $\vec{B}$, the force on it is non-zero. This implies the :-
Two batteries,one of emf 18 V and internal resistance 2Ω and the other of emf 12 V and internal resistance 1Ω, are connected as shown.The voltmeter V will record a reading of :
For the network shown in the figure, the value of the current i is:

A 5-A fuse wire can withstand a maximum power of 1W incircuit.The resistance of the fuse wire is:

Copper has face-centered cubic (fcc) lattice with interatomic spacing equal to 2.54 Å.The value of the lattice constant for this lattice is:

If a vector 2î+3ĵ+8 is perpendicular to the vector 4ĵ-4î+α,then the value of α is:
A network of four capacitors of capacity equal to C1=C,C2=2C,C3=3C and C4=4C are connected to a battery as shown in the figure. The ratio of the charges on C2 an C4 is
A network of four capacitors of capacity equal to C1=C,C2=2C,C3=3C and C4=4C
The ratio of the dimensions of Planck's constant and that of the moment of inertia is the dimension of: