Device used for the detection and measurement of all types of radiation (alpha, beta and gamma)
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Sextant is an instrument used in which of the following ?
Who first determined the value of G (gravitational constant)?
The SI unit of G, the universal gravitation constant is ______________.
To hear a distinct echo the time interval between the original sound and the reflected sound must be at least
What will be the force of attraction between two bodies weighing 20 kg and 50 kg, respectively, with a distance of 2 metre between them?
The longest railway platform in India
Where is the commercial capital of Sri Lanka?
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