Multiple choice

Which of the following reasons is/are correct behind the using of tungsten in an incandescent bulb?

  1. It is lustrous and shining.

  2. It has very high melting point.

  3. It has a low melting point.

  4. It is a bad conductor of heat.

  5. All of the above

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Yes, because of a very high melting point, tungsten is used as a filament in an incandescent bulb.