With reference to the Cryogenic Engine, consider the following statements:
1. It is the last stage of space launch vehicles which makes use of Cryogenics.
2. A cryogenic engine provides more force and is more efficient when compared to the solid and liquid propellant rocket engines.
3. They use Liquid Oxygen (LOX) and Liquid Hydrogen (LH2) as propellants.
Which of the statements given above is/are correct?1
1 only
2
2 and 3 only
3
1 and 2 only
4
1, 2 and 3