Which of the following correctly expresses the number below in scientific
notation?
0.000923

9.23×10^-4

Explanation:

Move the decimal point to make 0.000923 a new number between 1 and 10. Because our original number is less than one, we move the decimal point to the right. Drop any zeros in front of the number. Keep track of how many times you move the decimal point

and is always going to be the number you co.e up with ×10 and how many times you moved the point left or right

right= +

left= -

condenser is used to focus in the light microscope.