Tape recorder should not be kept near one of the following things:
1). Clock
2). Magnet
3). Electrical switchboard
4). Radio
1. In a railway track two rails rejoined end to end with a gap in between them because
2. When a strong beam of light is passed through a colloidal solution, the light will
3. How much mechanical work must be done to completely melt 1 gram of ice at 0°C ?
4. Pitot tube is used to measure
5. The best material for the core of a transformer is
6. The rapidly growing mass of phytoplankton covering the surface water of lake or pond is known as:
7. When a running car stops suddenly, the passengers tends to lean forward because of: