The basic principle of operation of a beam balance is----...
The basic principle of operation of a beam balance is-----------------
Hooke's law
Archimedes principle
law of flotation
principle of moments
Correct answer is D
Hooke's Law states that the extension of a spring is proportional to the load that is applied to it. A variety of materials obey this law as long as the load does not exceed the material's elastic limit.
Archimede's Principle states that a body immersed in a fluid experiences an upthrust equal to the weight of the fluid displaced, and this is fundamental to the equilibrium of a body floating in still water.
When a body floats in a liquid, the weight of the liquid displaced by its immersed part is equal to the total weight of the body. This is the law of floatation.
The Principle of Moments states that when a body is balanced, the total clockwise moment about a point equals the total anticlockwise moment about the same point.
The vibration of an air column produces the sound in the ...
Which of the following statements about X-rays is not correct? They ...
The diagram given illustrates a wave form. Determine the speed of the wave ...
Nuclear fission is preferred to nuclear fusion in the generation of energy because? ...
Which of the following is/are longitudinal wave(s)? I. Light waves from the sun II. Sound waves...