Consider the following statements about the following technologies in news 1 CubeSats are miniature ...........

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Consider the following statements about the following technologies in news.

1.CubeSats are miniature satellites that weigh few nanograms.

2.Film-Evaporation MEMS Tunable Array (FEMTA) uses pure water as the propellant for a spacecraft.

Which of the above is/are correct?

1 only

2 only

Both 1 and 2

None

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Explanation:

Statement 1: CubeSats are basically miniature satellites which typically weigh around two kilograms. In the future, they have potential to carry out tasks like imaging and remote- sensing currently performed by heavier satellites which are expensive to build and launch.

Statement 2: The FEMTA system uses an innovative design of small thrusters that deliver bursts of water vapor to manoeuvre the spacecraft into different orbits.

It uses pure water as the propellant since it is safe, green, easy to use and free from the risk of contaminating sensitive instruments by the backflow from plumes as in the case of thrusters using chemical propellants.