Instrument used for measuring specific gravity is called _____.
1). Bathymeter
2). Cryometer
3). Areometer
4). Cymometer
1. ?A diode as a rectifier converts?
2. Which one of the following is an ohmic conductor?
3. Which among the following is?symbiosis Nitrogern - fixing bacteria?
4. Stars appear twinkling because of ......... of light.
5. In which of the following cases kinetic energy is being used in performing work ?