Indian army has published the notification for SSC Tech 56 men and SSC Tech 27 women for the course commencing at OTA Chennai from April 2021
A jet engine works on the principle of conservation of
Energy
Mass
angular momentum
linear momentum
The surface temperature of the sun is approximately degree Celsius.
4000
5000
6000
7000
If the electric resistance of a typical substance suddenly drops to zero, then the substance is called:
Superconductor
Semi-conductor
Conductor
Insulator
A spherical air bubble is embedded in a piece of glass. For a ray of light passing through the bubble, it behaves like a:
Converging lens.
Diverging lens.
Plano-converging lens.
Plano-diverging lens.
The stars to be higher on the sky that they actually are’. This can be explained by:
Atmospheric refraction
Dispersion of light
Total internal reflection
Diffraction of light
