List of top Physics Questions

Find $ R $ in the following circuit:
A light is incident on a surface having refractive index $ \frac{4}{3} $ and reflected light is completely polarised. $ \left( \tan 53^\circ = \frac{4}{3} \right) $. What is the angle of incidence?
If the angular displacement in 10 seconds is $ 150^\circ $, find the number of revolutions in 10 seconds.
If the mean free path of a gas molecule at 27°C is $ 10 \times 10^{-7} \, \text{m} $, then the mean free path at 87°C is:
Chromatic aberration arises in their lens due to:
If $ V $ is the velocity of wave in a rope having tension $ T $, find the velocity when the tension becomes $ 8T $.
What is the ratio of distances travelled by a body in the first two intervals of 5 seconds? (Given the initial velocity $ u = 1 \, \text{m/s} $ and the body moves with a constant acceleration of $ 5 \, \text{m/s}^2 $)
1 torr = ________
Two particles of the same mass have charges in the ratio 3 : 1. What is the ratio of their time periods when they enter a constant magnetic field with the same velocity?
What is the working principle of a Bunsen Burner?
Find the incorrect pair:
Find the incorrect pair:
The displacement of a body varies with time $ t $ as $ S = \frac{1}{2} t^2 - 6t $. Find the time at which the velocity becomes zero.
The effective capacitance when $n$ identical capacitors are connected in parallel is 10μF, and when connected in series is 0.4μF. Find the value of $n$.
The effective capacitance when $n$ identical capacitors are connected in parallel is 10μF, and when connected in series is 0.4μF. Find the value of $n$.
The initial amount of radioactive element in a sample is $ 6 \times 10^3 $. After 48 years, the number of radioactive elements becomes $ 0.75 \times 10^3 $. Find the half-life.
Current in a coil changes at the rate of 10 A/s. The induced emf is 120V. Find the inductance $ L $ of the coil.
The ratio of distance of the sun from the earth to that of the moon from the earth is in the order:
The ratio of the wavelength of two particles with energy $ E $ and $ 3E $ respectively, is:
The ratio of angular velocity of two satellites at a distance $ r $ and $ 2r $ from the centre of the earth is:
The dimensional formula of product of moment of inertia and square of angular velocity is:
The transition of an atom from $ n = \infty $ to $ n = 3 $ represents:
When a rectangular coil having length $ l $ and breadth $ b $ are placed perpendicular to the magnetic field. The torque experienced by the coil is:
The angular velocity of the minute hand and the second hand is?
The wavelength of body radiation having maximum energy is $ \lambda_m $ at temperature $ T $. If the wavelength of radiation corresponds to maximum energy is $ \frac{\lambda}{3} $, then temperature is: