Question
The inner radius of a cylindrical pipe is 7 cm. Water
flows from this pipe at a speed of 5 km/h and falls into a rectangular tank 100 meters long and 44 meters long. In how much time will the water level in this tank rise by 14 cm.Solution
A pond of water appears less deep due to –
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When white light passes through a glass prism, which color deviates the least?
The weight (W) of a body is derived from which formula?
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In an experimental arrangement of a Fresnel's biprism, monochromatic light of wavelength 2. is used to produce interference fringe pattern. On introduc...
Parsec is the unit of
Match the following machines with their working principles:
(i) Electric motor - (a) Heat energy into mechanical energy
(ii) Steam engin...
What happens to the electrostatic force between two charges when the distance between them decreases?
