The operation of an optical fibre is based on the principal of

Similar Questions

A radioactive element has a decay constant of 0.077s-1. Calculate its half-life...

Given the same amount of beat, a quantity of water will reach a higher temperature in a brass pot th...

When two objects P and Q are supplied with the same quantity of heat, the temperature change in P is...

The ratio of the coefficient of linear expansion of two metals ∝1/∝2 is 3:4. If, when heated thr...

Red light travels faster than blue light when both of them pass through a glass prism because the ...

The instrument used for securing a large number of similar charges by induction is called ...

In the study of physics, temperature and heat are often confused with each other. Which of the follo...

The resistance of a 40W car head lamp, drawing current from a 12V battery is ____. ...

Which of the following statements is not correct? ...

Light of energy 5.0 eV falls on a metal of work function 3.0 eV and electrons are emitted, determine...