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Two lenses (1) and (2) with R_(1) = R_(2) = 0.20 m each are made from glasses with mu_(1) = 1.2 and mu_(2) = 1.6 respectively. The two lenses with a separation of 0.345 m are submerged in a liquid with mu_(1) = 1.4. The focal lenghts of (1) and (2) are found. An object is placed at a distance of 1.3m from lens 1. Two beams of red and violet colour are made to pass separately through a prism ("angle of the prism is" 60^(@)). In the position of minimum deviation, the angle of regraction will be |
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Answer» `30^(@)` for both the colours `r = 30^(@)` |
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