Welcome to your PGTRB PHYSICS QUIZ-01
1.
Which of the following device is fully duplex?
2.
Thermosphere is the ___ layer of atmosphere above the surface of our earth.
4.
Who invented the laser?
5.
The maximum displacement of a particle in the upward direction is
6.
The product of the moment of inertia and the angular acceleration is
7.
Light from the sun reaches earth in about
9.
Rocket operates (works) on the principle of
