convex lens have a real focus and concave lens have a vitual focus.why?
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convex lens forms the image on the other side of the lens when compared to object peice
while the image and the object in on same side of the lens for concave lens............in concave lens image cannot be captured on screen while it can be done for canvex lens
while the image and the object in on same side of the lens for concave lens............in concave lens image cannot be captured on screen while it can be done for canvex lens
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