Q. Consider the following statements:
1.Gravitational waves are ripples in the fabric of spacetime that travel at the speed of light, created by intense processes like the merging of black holes.
2.The evolved Laser Interferometer Space Antenna (eLISA) is a space-based mission that uses three spacecraft flying in an equilateral triangle formation to detect these waves.
3.Gravitational waves are a form of electromagnetic radiation, similar to radio waves, but with much higher energy.
Which of the statements given above are correct?
Answer: A
Notes:
Explanation:
- Statement 1 is correct: Predicted by Einstein and confirmed in 2016, they carry information about cataclysmic events.
- Statement 2 is correct: eLISA is the space counterpart to LIGO, using lasers between spacecraft separated by millions of kilometers.
- Statement 3 is incorrect: Gravitational waves are not electromagnetic radiation; they are actual distortions in the geometry of spacetime itself.
