Which one of the following statements about a satellite orbiting around the Earth is correct ?
Satellite is kept in orbit by remote control from ground station.
Satellite is kept in orbit by retro-rocket and solar energy keeps it moving around the Earth.
Satellite requires energy from solar panels and solid fuels for orbiting.
Satellite does not require any energy for orbiting.
For election to the Lok Sabha, a nomination paper can be filed by
Miscellaneous · Easy
In a month if the seventh day is three days earlier than Saturday,then the nineteenth day of the month will be a
Miscellaneous · Easy
Which among the following events happened earliest ?
Miscellaneous · Easy
An 80-litre solution of alcohol and water has 75% alcohol. How much water (in litres) must be added to bring down the concentration of alcohol to 60%?
Miscellaneous · Easy