46ᵗʰ B.P.S.C. (Pre) 2004
One micron is equal to –
a1/10 mm
b1/100 mm
c1/1000 mm✓ Correct
d1/10,000 mm
Explanation
1 micron = 10⁻⁶ m = 10⁻⁶ × 10³ mm = 10⁻³ mm = $\frac{1}{1000}$ mm
general-mental-ability
1 micron = 10⁻⁶ m = 10⁻⁶ × 10³ mm = 10⁻³ mm = $\frac{1}{1000}$ mm