Q. With reference to ‘Lagrange point (L-point)’ consider the following statements:
1.These are a special kind of orbit used by satellites to get from one orbit to another.
2.These points in space can be used by spacecraft to reduce fuel consumption needed to remain in position.
3.The most used L-points are L1 and L2. 
Which of the statements given above are correct?

[A] 1 and 2 only

[B] 2 and 3 only

[C] 1 and 3 only

[D] 1, 2 and 3

Answer: B
Notes:

Explanation –

Statement 1 is incorrect. Lagrange point are positions in space where objects sent there tend to stay.

Statements 2 and 3 are correct. Lagrange point can be used by spacecraft to reduce fuel consumption needed to remain in position. The most used L-points are L1 and L2.

Source: The Hindu