Identify the device used in following cases , when the image formed is virtual and erect in each case .
(i)Object is placed between device and its focus , image formed is enlarge and behind it.
(ii)Object is placed between focus and device, image formed is enlarge and on the same side as that of the object
(iii)Object is placed between infinity and device, image formed is diminished and between focus and optical centre on the same side as that of the object.
(iv) Object is placed between infinity and device , image formed is diminished and between pole and focus, behind it.
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When the image formed is virtual and erect in each case. ... (d) Object is placed between infinity and device, image formed is diminished and between pole and focus, behind it. Answer. (a) Concave mirror is used.
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- Concave mirror.
- Convex lens.
- Concave lens.
- convex mirror
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