निम्नलिखित विकल्पों

What would happen to the weight of a body in a lift moving upward with uniform speed?

The PH of an aqueous solution of a salt is 4.5. Which of the following about this salt is true?

For a system of particles, the center of mass moves:

A man cannot see clearly beyond 10 meters. The disease he suffers from :

Sound waves in air are:

Which of the following is an example of a plant which reproduce through its buds?

A body falls freely from a height of 80 m. Time taken to reach the ground is:

A magnetic force does no work on a moving charged particle because:

Which one of these is not a property of conservative force?

The pressure inside a soap bubble is 3 Pa more than atmospheric pressure. Surface tension is 0.03 N/m. Find radius.