CURRENT AFFAIRS

2023

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How far away is this planet from Earth?
A
600 miles
B
40 light years
C
50 miles
D
640 light years
Explanation: 

Detailed explanation-1: -A light-year is the distance a beam of light travels in a single Earth year, which equates to approximately 6 trillion miles (9.7 trillion kilometers).

Detailed explanation-2: -Light-year is the distance light travels in one year. Light zips through interstellar space at 186, 000 miles (300, 000 kilometers) per second and 5.88 trillion miles (9.46 trillion kilometers) per year.

Detailed explanation-3: -A light-year, alternatively spelled light year, is a large unit of length used to express astronomical distances and is equivalent to about 9.46 trillion kilometers (9.46×1012 km), or 5.88 trillion miles (5.88×1012 mi).

Detailed explanation-4: -The white dwarf is approximately 200 light years from Earth and is located in the constellation Boötes.

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