Question

plzz answer fast and correct​

Answer 1

Answer:

i think b option plz mark me as brainleist plzzzz

Answer 2

Answer :

Option ( A) 10 ^ -13

Explanation:

✔️1 u m = 10 ^ -6 m

✔️1 nm = 10^ -9 m

✔️1 cm = 10^-2 m

➡️( 1um × 1 nm )/1 cm

= ( 10^ -6 × 10^ -9 ) / 10^ -2

= 10 ^ [-6+ (-9) ] / 10^-2

( Since a^m × a^n = a^ m+n )

= 10^-15 / 10^-2

= 10^ [ -15 - (-2) ]

( Since a^m ÷ a^n = a ^ m -n )

= 10^ ( -15 + 2)

= 10^ -13

➡️ Hence 10^ -13 is the answer.

Hope it helps....

Plz mark my answer as brainliest ....