Question

Statement 1: Filament of an electric bulb is made of material having low melting point.
Statement 2: Electric current heats the bulb’s filament and the hot filament appears to glow. This results in huge heat generation.

• A.
  Only statement 1 is correct
• B.
  Both statement 1 and statement 2 are correct.
• C.
  Both statment 1 and statement 2 are incorrect.
• D.
  Only statement 2 is correct

Answer 1

The correct option is D

Only statement 2 is correct
We know that:

• Electric current heats the bulb’s filament and the hot filament appears to glow. In order to sustain huge generation of heat in the filament, it is made up of material having high melting point.

Therefore, statement 1 is incorrect and statement 2 is correct.