Question

Q1) A truck has travelled 120 km. What will be the value of it's distance in S.I unit ?
Q2) An atomic clock measures the time of an electron excitation to be 0.3 micro second. What will be it's value in second ?
Q3) The diameter of nucleus is approximately 0.1 nm. What is this in pm ?​

Answer 1

Answer:

1.distance 12000 m

2.time 0.3 micro second= 0.3×10^-6 seconds