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
The rate of change of movement of body is equal to the resultant.
Energy
power
force
impulse
The SI unit of mechanical energy is.
Joule
wait
Newton – second
Two system are said to be in thermal equilibrium. If and only if.
There can be a half flow between them even it they are at different temperatures.
There cannot be a half flow between them even it they are at different temperatures.
there is no heat flow between them
their temperatures are slightly differing
Which one of the following statements is correct? The velocity of sound.
does not depend upon the nature of media
Is maximum in gases and minimum in liquids
is maximum in solids and minimum in liquids
is maximum in social and minimum in gases
Which one of the following statement is not correct?
Sound waves in gases are longitudinal in nature.
Sound waves having frequency below 20 Hz are known as ultrasonic waves.
Sound waves having higher amplitudes are louder.
Sound waves having higher audible frequencies are sharp.
