Question

TELL.....TELL.......TELL
Question 1) 1 light year is how much?????
Question 2)Solve no. 1 with all the processes.....?????????
Question 3) What is Avogadro number?Explain briefly according to Class 11 {ICSE Syllabus}.......???????????​

Answer 1

Light year is 9.14607 ×100000000000000000

Avogadro number is 6×0.22×10 to the power 23

Answer 2

Step by step explanation,

1) 1 light year= 137,000 years.

2) There are approximately 6trillion miles in one light year. The distance to cover this distance per every light year for 4 light years is given by 6*4=24trillion miles.

Hence, the trip will take 1.2 billion hours.

The number of hours per day=24hours

The number of days per year is 365.25days.

Converting the 1.2 billion hours to years, we get 137,000years.

3) Avogadros number=6.203*10^23.

This is the number of atoms or molecules in one mole of a substance.