List of top Physics Questions

The time gap between 44% decay and 93% decay of a radioactive substance is 81 minutes. The half-life of the radioactive substance in minutes is:
If the Earth loses its gravitational pull, what will happen to the weight and mass of an object?
A wire of length L and radius R is stretched to get the radius of cross-section halved. What is the new resistance?
Through which phenomenon can we separate different light waves into their respective colors?
Why do farmers irrigate their crops to protect them from heat?
The refractive index of glass is maximum for which color?
The dimensional formula of kinetic energy is equal to which of the following?
The specific fuel consumption of a diesel engine is
In the analysis of a bar bending, the bending is expressed in which axis:
Two bodies of masses 4 kg and 5 kg are moving with equal momentum. Then, the ratio of their respective kinetic energies is:
The total energy of a freely falling object:
If the momentum of a body doubles, then its kinetic energy will:
What physical quantity is associated with the change in wavelength of a wave?
Which color has the minimum frequency in the visible spectrum?
In which process is the rate of heat transfer maximum?
A car covers one-third of the distance at a speed of 10 km/h, the second third at 20 km/h, and the last third at 60 km/h. Find the average speed of the car.
The force that is naturally present in the environment is:
Which type of reflection is produced when light reflects from curved and smooth surfaces?
A particle is moving with uniform speed in a circular path. What will be the acceleration of the particle?
Kilowatt-hour is the unit of:
Which of the following is the SI unit of electric current?
The emissivity of a substance is:
A 75 kg person lifts a 25 kg object to a height of 10 meters in 5 minutes. What is the power used?
If the electric field and the magnetic field are equal in magnitude and perpendicular to each other, then:
Newton's second law gives the measure of which physical quantity?