Physics

Two solid discs of radii r and 2r roll from the top of an inclined plane

Two solid discs of radii r and 2r roll from the top of an inclined plane without slipping. Then Options…

A body covers 200 cm in the first 2 seconds and 220 cm in the next 4 seconds.

A body covers 200 cm in the first 2 seconds and 220 cm in the next 4 seconds. The velocity…

The coefficient of friction between the tyres and the road is 0.25. The maximum speed

The coefficient of friction between the tyres and the road is 0.25. The maximum speed with which a car can…

If two bodies are projected at 30⁰ and 60⁰ respectively with the same velocity, then

If two bodies are projected at 30⁰ and 60⁰ respectively with the same velocity, then Options (a) Their ranges are…

At which place, Earth’s magnetism becomes horizontal

At which place, Earth's magnetism becomes horizontal Options (a) Magnetic pole (b) Geographical pole (c) Magnetic meridian (d) Magnetic equator…

A charged particle with a velocity 2×10³ ms⁻¹ passes undeflected through electric field

A charged particle with a velocity 2x10³ ms⁻¹ passes undeflected through electric field and magnetic fields in mutually perpendicular directions.…

A 0.5 kg ball moving with a speed of 12 m/s strikes a hard wall at an angle

A 0.5 kg ball moving with a speed of 12 m/s strikes a hard wall at an angle of 30°…

A marble block of mass 2 kg lying on ice when given a velocity of 6 m/s is stopped

A marble block of mass 2 kg lying on ice when given a velocity of 6 m/s is stopped by…

A satellite is revolving around the earth with a kinetic energy E. The minimum

A satellite is revolving around the earth with a kinetic energy E. The minimum addition of kinetic energy needed to…

Imagine a new planet having the same density as that of earth but it is 3 times bigger

Imagine a new planet having the same density as that of earth but it is 3 times bigger than the…