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Question

Physics Question on Units and measurement

The angle of 1′1' (minute of arc) in radian is nearly equal to

A

2.91×10−42.91 \times 10^{-4} rad

B

4.85×10−44.85 \times 10^{-4} rad

C

4.80×10−64.80 \times 10^{-6} rad

D

1.75×10−21.75 \times 10^{-2} rad

Answer

2.91×10−42.91 \times 10^{-4} rad

Explanation

Solution

1=(160)∘=160×π1801=\left(\frac{1}{60}\right)^{\circ}=\frac{1}{60}\times\frac{\pi}{180} radian =2.91×10−4=2.91\times10^{-4} radian