How will you express the number 43,410,00 in powers of ten?

The distance between the sun and the earth is 1,49,500,000,000 m. How will you express it in powers of ten?

How would you express the protective power of a colloid?

How can you express the concentration of a solution ?

Why is that for both very small as well as very large (in addition to ordinary) quantities, the physical measurements are usually expressed in scientific notation, with powers of ten ?

Why is that for both very small as well as very large (in addition to ordinary) quantities, the physical measurements are usually expressed in scientific notation, with powers of ten ?

How shall you increase the magnifying power of a simple microscope?

A teacher of Class II asks her students to write 4 ones and 3 tens. Some students write as 43 instead of 34. As a teacher, how will you help the students in understanding the concept?