Question

1 km = ______ mm = ______ pm

Answer 1

1 km = `underline(10^6)` mm = `underline(10^15)` pm

स्पष्टीकरण:

1 km = `1  "km" xx (1000  "m")/(1  "km") xx (100  "cm")/(1  "m") xx (10  "mm")/(1  "cm")` = 10⁶ mm

1 km = `1  "km" xx (1000  "m")/(1  "km") xx (1  "pm")/(10^-12  "m")` = 10¹⁵ pm