questions related to lens formula
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First of all, the lens formula is :
1. A concave lens has focal length of 15 c.m. At what distance should the object from the be placed so that it forms an image at 10 c.m from the lens? Also, find the magnification produced by the lens.
2. A convex lens forms a real and inverted image of needle at a distance of 50 c.m from it. Where is the needle placed in front of the convex lens if image is equal to the size of the object? Also, find the power of the lens.
These are 2 questions hope it will help you.
1. A concave lens has focal length of 15 c.m. At what distance should the object from the be placed so that it forms an image at 10 c.m from the lens? Also, find the magnification produced by the lens.
2. A convex lens forms a real and inverted image of needle at a distance of 50 c.m from it. Where is the needle placed in front of the convex lens if image is equal to the size of the object? Also, find the power of the lens.
These are 2 questions hope it will help you.
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