Question

is placed 9 cm away
nature, position and size of the image formed.
30. When an object is placed 20 cm from a concave mirror, a real image magnified three times is formed. Find :
(the focal length of the mirror.
Where must the object be placed to give a virtual image three times the height of the object ?
dentist's mirror has a radius of curvature of 3 cm House
from a small dental cavity to​

Answer 1

Answer:

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