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A nanosecond (ns) is an SI unit of time equal to one billionth of a second, that is, 1⁄1 000 000 000 of a second, or 10−9 seconds. The term combines the prefix nano- with the basic unit for one-sixtieth of a minute.
The reason for a swimming pool to appear less deep than the actual depth is –
What device is used to measure electric current?
A ray of light passing through an equilateral triangular glass prism from air undergoes minimum deviation when angle of incidence is 75% of the angle o...
Which mirror always forms virtual, erect, and diminished image?
A sphere of radius 1m encloses a charge of 10μC. Another charge of −5μC is placed inside the sphere. The net electric flux would be :
Parsec is the unit of
When a liquid is heated in a container, which of the following processes primarily causes the heat transfer within the liquid?
What is the momentum of a 2 kg object moving at 3 m/s?
Sound travels fastest in which medium?
A fish inside water (μ = 4/3) sees the world above through a circular “window” due to total internal reflection. The angular diameter of this windo...
