What initiative has the Indian Navy launched to provide

A body is thrown vertically upward. The work done by gravity is: 

Which phenomenon does a hologram use to create an image?

A car increases its speed from 20 m/s to 60 m/s in 8 seconds. Find its acceleration.  

Which of the following rays are not deflected by a magnetic field?

When a cannonball is fired, its motion is an example of which type of motion?

Which lens is used to correct myopia (shortsightedness)?  

Hyperrnetropia or longsight can be corrected by using :

The Lyman series in hydrogen atom spectrum lies in:

Which device measures temperature?