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NEET 2026 · Applications of Dimensional Analysis

Applications of Dimensional Analysis question from NEET 2026

Q7NEET 2026Easy

Applications of Dimensional Analysis

The speed of light in vacuum is taken as unity. If light takes 6 min 40 s to reach the Earth from the Sun, the distance between the Sun and the Earth in new unit is:

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Answer: (d)

Time taken $t = 6\times 60 + 40 = 400$ s.
With $c = 1$ , distance $= c\,t = 1 \times 400$ .
So the answer is (d) 400 (new units).

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