Question
Who defined the law of
gravitation?Solution
Sir Isaac Newton brought out his monograph, titled `Philosoplliae Naturalis Principia Mathematica,' in 1687. In this work, Newton described universal gravitation and the three laws of motion, which dominated the scientific view of the physical universe for the next three centuries. Newton showed that the motions of objects on Earth and of celestial bodies are governed by the same set of natural laws, by demonstrating the consistency between Kepler's laws of planetaly motion and his theory of gravitation, thus removing the last doubts about helio-centrism and advancing the Scientific Revolution.
What is the name of the process by which a liquid changes into gas at all temperatures? Â
Two long parallel wires 2 cm apart carry 5 A and 3 A currents in the same direction. What is the force per unit length on one wire?
Which among the following is not a characteristic of transition metals?
Two spherical soap bubbles of radii r1 and r2 coalesce to form a bubble of radius R. If surface tension of soap solution is T, atmospheric pressure is P...
Which of the following is not an insulator?
Mirror formula is
Which of the following does not affect the value of acceleration due to gravity?
If lift is going up with acceleration, the apparent weight of a body is -
The pitch of a sound is primarily determined by which of the following?
A current of 5 A flows through a 10 Ω resistor. Find the voltage. Â
