a concave lens of focal length one metre is placed at a distance of 1 metres from an object where and at what distance will the image be formed
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Answer:
Explanation:
Given, a concave lens.
We know that , focus of the concave lens lies on the left side of optical center.
Therefore, we have,
- focal length, f = - 1 m
Also, Object is placed on left side of the optical centre
Therefore, we have,
- Object distance, u = - 1 m
Now, let the image distance is ‘v’
By lens formula, we get,
Putting the respective values, we get,
°.° Image distance is negative
.°. Image will be formed to the left side of the optical centre at a distance of 0.5 m from optical center towards left side.
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