Q. A signature written with carbon pencil weighs 1 mg. what is the number of carbon atoms present in the signature?
A) 6.02$\times 10^{20}$
B) 0.502$\times 10^{20}$
C) 5.02$\times 10^{23}$
D) 5.02$\times 10^{20}$
Explanation
The correct answer is Option B: 0.502$\times 10^{20}$.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.