Sentences.
1. Write the lens makers formula and explain the terms in it?
2. Plaster of Paris should be stored in moisture -proof container. Why?
3. Draw a neat diagram for showing acid solution in water conducting
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ⒶⓃⓈⓌⒺⓇ The lens maker formula gives the relationship between focal length, radius of curvature and the refractive index of the lens. F is negative. Hence, this is the required solution.╔════════════════╗
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