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हज़ारी प्रसाद द्विवेदी (19 अगस्त 1907 - 19 मई 1979) हिन्दी निबन्धकार, आलोचक और उपन्यासकार थे।
A satellite is orbiting Earth at a height where acceleration due to gravity is 5 m/s². If radius of Earth is 6400 km, what is the orbital radius?
The pressure at the bottom of a liquid column depends on:
The SI unit of angular momentum is equivalent to which of the following?
The process of union of two or more molecules of a substance to form a large single molecule is called :
A transformer cannot work on:
What is the SI unit of magnetic flux?
Which one of the following is the equation for Velocity Time relation?
A potentiometer is an accurate and versatile device to make electrical measurements of E.M.F. because the method involves:
With the increase of pressure, the boiling point of any substance –
Heat from the sun reaches earth by the process of –
