If a copper wire Is increased to double its length Its resistance will become
1). four times
2). one fourth
3). double
4). hall
1. If an object is thrown upwards, what will be its velocity, when it reaches its maximum height?
2. When a bullet is fired from a gun
3. Permissible noise level at Residential area during night time Is:
4. Magnetic keepers are pieces of
5. Which planet has the lowest density?
6. A voltaic cell converts chemical energy to
7. The working of a rocket is based on the principle of: