27. When an object is placed at a distance of 25 cm from a mirror, the magnification is mi. The object
is moved 15 cm farther away with respect to the earlier position and the magnification becomes
m2. If my/m2 = 4, then calculate the focal length of the mirror.
29
Answers
Answered by
1
Answer:
Chernozem is a black-colored soil containing a high percentage of humus and high percentages of phosphoric acids, phosphorus, and ammonia. Chernozem is very fertile and can produce high agricultural yields with its high moisture storage capacity.
Similar questions