Question: Consider the following statements:
An ordinary light bulb has a rather short life because the:
- filament wire is not uniform.
- bulb cannot be evacuated completely.
- wires supporting the filament melt at high temperatures. Which of the above statements are correct?
Options:
A) 1 and 3
B) 2 and 3
C) 1 and 2
D) 1, 2 and 3
Show Answer
Answer:
Correct Answer: D
BETA
