List of top Physics Questions asked in NEET (UG)

The magnitude of vectors $ \overrightarrow{A}$, $\overrightarrow{B}$ and $ \overrightarrow{C} $ are 3, 4 and 5 units respectively. If $ \overrightarrow{A} + \overrightarrow{B} = \overrightarrow{C}$, the angle between $ \overrightarrow{A} $ and $ \overrightarrow{B} $ is

Masses of three wires of copper are in the ratio of $1 : 3 : 5$ and their lengths are in the ratio of $5 : 3 : 1$. The ratio of their electrical resistances is

In the circuit shown below, the current in the $1\Omega$ resistor is

A particle moves in a straight line with a constant acceleration. It changes its velocity from $10 ms^{-1}$ to $20ms^{-1}$ while passing through a distance 135 m in t second. The value of t is

The velocity of sound in any gas depends upon

Let $I$ be the moment of inertia of a uniform square plate about an axis $AB$ that passes through its centre and is parallel to two of its sides. $CD$ is a line in the plane of the plate that passes through the centre of the plate and makes an angle $\theta$ with $AB$. The moment of inertia of the plate about the axis $CD$ is then equal to

The coefficient of restitution $e$, for a perfectly elastic collision is

The plate resistance of a triode is $3 \times 10^3 \Omega$ and its mutual conductance is $1.5 \times 10^{-3} A/V$. The amplification factor of the triode is

The x-t graph of a particle performing simple harmonic motion is shown in the figure. The acceleration of the particle at t=2s is:

A metal ring is held horizontally and bar magnet is dropped through the ring with its length along the axis of the ring. The acceleration of the falling magnet is

A black body at $227^{\circ} C$ radiates heat at the rate of $7\, cals / cm ^{2} s$. At a temperature of $727^{\circ} C$, the rate of heat radiated in the same units will be :