Question Text
Question 1 :
Assuming that the charges of an electron is {tex}1.6 × 10^{-19}{/tex}coulombs, the number of electrons passing through a section of wire per sec, when the wire carries a current of one ampere is :
Question 3 :
The insulator of electricity is which of the following materials listed below:
Question 7 :
Water is cooled from 4 °C to 0 °C. It will:
Question 10 :
Energy enters in a food chain through which of the following consumers:
Question 11 :
A mirror forms a virtual image (diminished) of an object, whatever be the position of object :
Question 13 :
If an incident ray passes through the centre of curvature of a spherical mirror, the reflected ray will :
Question 15 :
For an incident ray directed towards centre of curvature of a spherical mirror the reflected ray: