4141. Which phenomena is used in optical fibres?
Total internal reflection
4142. Who is the author of "Dharmaraja Nirupanam' ?
Swadeshabhimani Ramakrishnapilla.
4143. Who is the author of “Idiot”?
Fyodor Dostoyevsky
4144. Who is responsible for the registration of voters?
Election Commission
4145. Who appoints the Chairman of the UPSC?
President
4146. What is considered as the drug of last resort for human being?
Chloramphenical
4147. Challenge Cup Barna-Bellack Cup is associated with?
Table Tennis (Men)
4148. Who gave the idea that originally there was only one continent called Pangea?
Wegener
4149. Which sector is the largest emitter of greenhouse gases in India?
Electric power generation
4150. Who is the author of The Importance of Being Earnest?
Oscar Wilde