PGTRB PHYSICS QUIZ-01

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    Welcome to your PGTRB PHYSICS QUIZ-01

    1. 
    Rocket operates (works) on the principle of

    2. 
    Thermosphere is the ___ layer of atmosphere above the surface of our earth.

    3. 
    The product of the moment of inertia and the angular acceleration is

    4. 
    Absolute zero is

    5. 
    Light from the sun reaches earth in about

    6. 
    What is MRI?

    7. 
    The maximum displacement of a particle in the upward direction is

    8. 
    Who invented the laser?

    9. 
    Which of the following device is fully duplex?