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JEE Main Physics question

PhysicsUnits and MeasurementJEE Main

Let us choose a new unit of length such that the velocity of light in vacuum is unity. If light takes 8 min 20 sec to cover the distance between the sun and the earth, this distance in terms of the new unit is

Answer: (C)

Solution

min s . Since in the new unit system, distance $=c×

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Question ID VK-157195