J

Jatin Dubey • 3.78K Points
Extraordinary Science 

Q. he first 'thermionic value' was invented by

  • (A) Thomas Edison
  • (B) J A Flemming
  • (C) Richardson
  • (D) Lee De Forest
Correct Answer - Option(B)

No solution found for this question.
Add Solution and get +2 points.

You must be Logged in to update hint/solution

Discusssion

Login to discuss.

Be the first to start discuss.

Related MCQs on Science

Q. Process of cell division can take place by

Q. Which British physician discovered smallpox vaccine?

Q. Kerosene is a mixture of

Q. The deterioration of a metal by an electrochemical process is commonly termed as

Q. Which among the given statements is not true about diamonds?

Q. Who among ghr following laid the foundation of nuclear science in india

Q. _____ gives hardness to stainless steel.

Q. Which among the given is the hardest element?

Q. Consider the following: 1. True roots 2. True stems 3. True leaves Algae have which among the ab...

Q. The term ecosystem was given by

Learn All Science MCQs

Download our easy to use, user friendly Android App from Play Store. And learn MCQs with one click.

Image