Question 3 "An object should be placed 30 cm in front of a concave spherical mirror of focal length of 20 cm such that the height of an upright image is half of object size." This statement is %3D A True False
Question 3 "An object should be placed 30 cm in front of a concave spherical mirror of focal length of 20 cm such that the height of an upright image is half of object size." This statement is %3D A True False
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