Motion of a train is an example of ______.
1). Rotatory motion
2). Spin motion
3). Projectile motion
4). Translatory motion
1. ?The phenomenon of interference is shown by
2. Speed of sound is the greatest in :
4. Velocity of sound in air does not change with the change of
6. The device used for locating submerged objects under sea is
7. Rain drops fall from great height. Which among the following statements is true regarding it?
9. If lift is going up with acceleration, the apparent weight of a body is