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?

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.

The color with the longest wavelength is

The side mirrors of vehicles are of which type of mirrors?

What is the power rating (in W) of a bulb if a current of 0.3 A passes through on application of 240 V of potential difference across its terminals?

Which instrument is used for measuring humidity of atmosphere?

_________________ through a plane surface is the product of the magnetic flux density normal to the surface and the area of the surface.

Which among the following determines the pitch of a sound?