Physics Basics — Set 3
Physics · भौतिकी की मूल बातें · Questions 21–30 of 50
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1
Which law states that energy cannot be created or destroyed, only transformed?
2
Which instrument is used to detect and measure small electric currents?
3
Who discovered the phenomenon of Radioactivity?
4
The unit 'Light Year' measures which of the following?
5
Which of these devices converts mechanical energy into electrical energy?
6
Which subatomic particle has a positive electric charge?
7
What is the unit of measure for the 'Power' of a lens?
8
Who invented the first practical Telephone?
9
What is the boiling point of pure water at standard sea-level pressure in Celsius?
10
Which instrument is used to measure the depth of the ocean?