Question
What is the purpose of ‘evolved Laser Interferometer Space Antenna (ELISA)' project?
(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
Answer:
B
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Explanation:
The ELISA project aims to build a space-based gravitational wave observatory using a system of three spacecraft. These spacecraft will be placed in a triangular formation with precise separations between them. By measuring the tiny changes in distance between the spacecraft caused by passing gravitational waves, the ELISA mission will be able to detect and study these waves with high precision.