2021
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which country’s astronomers have detected huge optical flare in a black hole ‘BL Lacertae’?
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Russia
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US
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India
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UK
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Explanation:
Detailed explanation-1: -Notes: The Department of Science and Technology of India has reported that Indian astronomers have detected huge optical flare in BL Lacertae. BL Lacertae is a feeding super massive black hole or blazar.
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