Lakes freeze in cold countries in winter leaving the water underneath at
1). 0℃
2). 0℉
3). 4℃
4). 4℉
1. The heating element of an electric heater should be made of a material having
2. For which of the following game, players must have the knowledge of Pascal's law?
4. What is the unit of the physical quantity "Jerk"?
6. Beta rays emitted by a radioactive material are
7. For a person having hyper metropia the near point is
8. What is colour of light related to?
9. Analog synthesis refers to a technology based on
10. The instrument used for measuring air pressure is called ......