[" 7.In compound interest principal "1" point "],[" change periodically "],[" True "],[" False "]

In compound interest, principal changes periodically.

In the case of compound interest the principal does not change.

In simple interest principal remains constant for the whole loan period?

Fill in the blanks. In compound interest principal ________ every year.

The principal focus of a convex lens is virtual . True/False

If the compound interest of principal Rs. p is a% per annum and the interest is compounded half-yearly, then find the amount in n years.

What is the rate of compound interest ? (i) The principal was invested for 4 years. (ii) The earned interest was Rs. 1491.