Recently, scientists observed the merger of giant 'blackholes' billions of light-years away from the Earth. What is the significance of this observation?
A'Higgs boson particles' were detected.
B'Gravitational waves' were detected.
CPossibility of inter-galactic space travel through 'wormhole' was confirmed.
DIt enabled the scientists to understand 'singularity'.
Answer & Solution
Correct answer: B. 'Gravitational waves' were detected.
UPSC CSE Prelims 2019 (GS-I, Set A), Q.97. Official answer key: B.
Related questions
The second basic principle of preventing infectious disease, keeping the immune system worThe basic key to prevention of infectious diseases is:The recruitment of immune cells to infected tissue, causing swelling, pain and fever, is:The virus causing Japanese encephalitis, entering through a mosquito bite, infects the:Typhoid-causing bacteria entering through the mouth stay in the:Female mosquitoes bite because they need blood to:Animals like mosquitoes that carry infecting agents from a sick person to another host areAntibiotics do not work against viral infections because viruses: