Question
Consider the following statements : An ordinary light bulb has a rather short life because the:
I. filament wire is not uniform.
II. bulb cannot be evacuated completely.
III. wires supporting the filament melt at high temperature.
Which of the above statements are correct ?
A
I and III
B
II and III
C
I and II
D
I, II and III
Answer & Explanation
Option: [D]
