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
Which one of the following can charge an insulator?
Current electricity
Static electricity
Magnetic field
Gravitational field
At 200C, the speed of sound in water is approximately
330 m/s
800 m/s
1500 m/s
5000 m/s
Which one of the following could be the melting point of iron?
250C
5000Ca
370C
15000C
Basic scientific principle behind a nuclear reactor is
Nuclear fusion
Controlled nuclear fusion
Uncontrolled nuclear fission
Controlled nuclear fission
Which one of the following statements is NOT correct for the given reaction?
Fe(s) + CuSO4(aq) → FeSO4(aq) + Cu(s)
Iron is the reducing agent
The solution turns green in color after the reaction
Copper is a more reactive metal than iron
The reaction is an example of a redox reaction
