Physics Questions

An object is placed on the principal axis of a cortex lens of focal length 10 cm. If the distance of the object from the lens is 30 cm, what is the distance of the image formed?

At boiling point of liquids , its

Find the acceleration (in m/s2) of a body which accelerates from 10 m/s to 20 m/s in 4 seconds.

A body of mass 2 kg is thrown upward with initial velocity of 20 m/s. After 2 seconds, its kinetic energy will be : (g = 10 m/sq.s)

A body is initially moving with a velocity of 5 m/s. It undergoes an acceleration of 2 m/s2 for 4 seconds. Find the displacement (in m) of this body in these 4seconds.

Sound can not travel in which of the following medium?

Find the acceleration (in m/s2) of a body which accelerates from 25 m/s to 30 m/s in 10 seconds

Which of the following device is used to measure humidity?