Saved Bookmarks
| 1. |
(a) A boy claps his hand in front of a cliff and hears the echo 2 sec later . If the speed of sound is 340m/sec , calculate the distance of the cliff from the boy.(b) state the law of magnestism |
|
Answer» (a)340 m (b)Unlike POLES ATTRACT, like poles repel ( can be verified with experiment of a magnet suspended by a height ) Explanation: Numerical (a) given in picture |
|