Question: What is the purpose of ’evolved Laser Interferometer Space Artenna (eLISA)’ project?
Options:
A) To detect neutrinos
B) To detect gravitational waves
C) To detect the effectiveness of missile defence system
D) To study the effect of solar flares on our communication systems
Show Answer
Answer:
Correct Answer: B
Solution:
- Exp. [b] The Laser Interferometer Space Antenna (LISA), is a proposed European Space Agency mission designed to detect and accurately measure gravitational waves ? tiny ripples in the fabric of space-time from astronomical sources. LISA would be the first dedicated space-based gravitational wave detector. It aims to measure gravitational waves directly by using laser interferometry The LISA concept has a constellation of three spacecraft, arranged in an equilateral triangle with sides 2.5 million km long, flying along an Earth-like heliocentric orbit. The distance between the satellites is precisely monitored to detect a passing gravitational wave.
BETA
