write a activitie to findout object and image distance by using concave mirror
Answers
Answer:
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Explanation:
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Answer:
When object is in between C and focus then real image is formed between C and infinity. So the maximum distance between real object and real image for concave mirror is infinity.
Materials Required
A convex lens with a focal length of 12-20 cm. Measuring scale. Optical bench. A needle.
Explanation:
12 cm. B.
6.6 cm. C.
30 cm. D.
25 cm. EASY. Answer. Given that focal length =f=−20cm (concave mirror) and image distance v=10cm (virtual image from behind the mirror) From mirror formula, V1+u1=f1. ⇒u1=f1−u1=−201−101=20−1−3=20−3. ⇒u=3−20cm. ≃6. 67cm.
From the experiment of measuring object distance and image distance we can observe the nature of image formed by concave mirrors and we can infer that concave mirror forms both real and virtual image.