GkSeries.com

Q.

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]

DOWNLOAD CURRENT AFFAIRS PDF FROM APP

Please share this page

Click Here to Read more questions

Teacher Eligibility Test