Question

name the scientist and the country of origin whose field of work was elasticity .
name the scientist and the country of origin whose field of work was Cosmic rays .
what is the scientific Principle behind optical fibres .
what is the range of gravitational and electromagnetic force .
name the physicist who showed that the same Laws of Motion and the laws of gravitation apply to celestial and Terrestrial mechanics .
who predicted the existence of a new particle called neutrino
using the conservation laws of energy and momentum ​

Answer 1

electricity

benzamin franklin (American)

Nicola tesla (American)

cosmic ray

victor hess (Australian American )

Total internal reflection is the principle behind optical fiber cable

Range of gravitational force is infinity

Answer 2

1.Robert Hooke

2Hess

3.An optical fiber is a cylindrical dielectric waveguide (nonconducting waveguide) that transmits light along its axis, by the process of total internal reflection. The fiber consists of a core surrounded by a cladding layer, both of which are made of dielectric materials.

4.The Weak Force. One of the four fundamental forces, the weak interaction involves the exchange of the intermediate vector bosons, the W and the Z. Since the mass of these particles is on the order of 80 GeV, the uncertainty principle dictates a range of about 10-18 meters which is about 0.1% of the diameter of a proton .

5.Newton's law tells us that the strength of the gravitational force between two objects drops off in the same .

6.Wolfgang Pauli

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