एकाधिकार शब्द का

Metalloids are

Supersonic speed is speed greater than the speed of sound (in air at sea level) that is to say around______ miles/hour. 

Which gas is commonly used in electric bulbs to prevent oxidation?

What is the primary source of the Sun’s energy?

A current of 3 A flows through a 10-ohm resistor for 5 seconds. What is the total energy dissipated by the resistor?

In a reverse-biased p-n junction diode, which of the following occurs as reverse voltage increases?

For what was Albert Einstein awarded Nobel Prize?

A wire is bent into a circular loop. If current is passed through it, which one of the following statements is valid?

The unit of electric current is:

When a bottle of scent is kept open in a corner of a room its odour is felt in all parts of the room. This is clue to the phenomenon of –