Q.

Which of the following is present inside the fluorescent tube?

  • AArgon and neon
  • BArgon and  Carbon dioxide
  • CMercury vapour
  • DHelium and oxygen
Correct Answer : (C)

Mercury vapour

Hints :

Mercury vapour is present inside the fluorescent tube.

Previous

Luminous efficiency of a fluorescent tube is

Next

Candela is the unit of which of the following?

Join The Discussion