A concave mirror is said to have a real focus where as a convex mirror is said to have virtual focus. Why do you think so? Also mention which of the two-concave or convex lens-how real focus?
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Answer:
A concave mirror is said to have a real focus whereas a convex forms virtual focus
Explanation:
A concave mirror can form an image on screen or sheet of paper or the back of your hand.you will immediately feel it is real.A bit of film placed there will be photograph an image of the sun
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