List of top Physics Questions asked in VITEEE, NEET (UG)

The potentiometer is best for measuring voltage,as:

Which species does not exhibits paramagnetism:

The value of quality factor is

A car battery of emf 12V and internal resistance 5×10^–2Ω,receives a current of 60Å from external source,then terminal voltage of battery is:

If \(\vec F\)=(60\(\hat i\)+15\(\hat j\)-3\( \hat k\))N and \(\vec V\)=(2\(\hat i\)-4\(\hat j\)+5\( \hat k\))m/s, then instantaneous power is:

A $ 500 \,kg $ car takes a round turn of radius $ 50\, m $ with a velocity of $ 36\, km/h $ . The centripetal force is

The current in the given circuit is

The internal resistance of a cell of e.m.f. 2 V is $0.1\, \Omega$ It is connected to a resistance of $3.9\, \Omega$. The voltage across the cell will be

In a meter bridge, the balancing length from the left end (standard resistance of one ohm is in the right gap) is found to be 20 cm. The value of the unknown resistance is

A potentiometer consists of a wire of length 4 m and resistance $10\, \Omega$ It is connected to a cell of e.m.f. 2 V. The potential difference per unit length of the wire will be

The resistance of a discharge tube is

The escape velocity of a sphere of mass m is given by (G = Universal gravitational constant; M = Mass of the earth and R = Radius of the e earth)

What is the effective capacitance between points X and y?

When air is replaced by a dielectric medium of constant K, the maximum force of attraction between two charges separated by a distance

A disc is rolling (without slipping) on a horizontal surface. C is its centre and Q and P are two points equidistant from C. Let $v_P$, $v_q$ and $v_c$ be the magnitude of velocities of points P,Q and C respectively, then

A mass m supported by a massless string wound around a uniform hollow cylinder of mass m and radius R. If the string does not slip on the cylinder, with what acceleration will the mass fall on release?

A person aiming to reach exactly opposite point on the bank of a stream is swimming with a speed of 0.5 m/s at an angle of $ 120^\circ$ with the direction of flow of water. The speed of water in the stream, is

A stone is dropped from a height \(h\). It hits the ground with a certain momentum \(p\). If the same stone is dropped from a height 100% more than the previous height, the momentum when it hits the ground will change by -

A straight wire of diameter 0.5 mm carrying a current of 1 A is replaced by the another wire of 1 mm diameter carrying the same current. The strength of the magnetic field far away is

Colours appear on a thin soap film and on soap bubbles due to the phenomenon of

If a unit vector is represented by $ 0.5 \widehat{ i} - 0 . 8 \widehat{j} + c \widehat{k}$ then the value of c is

Magnetic field intensity at the centre of coil of 50 turns, radius 0.5 m and carrying a current of 2 A, is

The photoelectric work function for a metal surface is 4.125 eV. The cut-off wavelength for this surface is

Wavelength of light of frequency 100 Hz