HSC Science (Electronics) 12th Board ExamMaharashtra State Board
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The Refractive Indices of Water for Red and Violet Colours Are 1.325 and 1.334 Respectively. Find the Difference Between the Velocities of Rays for These Two Colours in Water. - HSC Science (Electronics) 12th Board Exam - Physics

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Question

The refractive indices of water for red and violet colours are 1.325 and 1.334 respectively.
Find the difference between the velocities of rays for these two colours in water. (c = 3 × 108 m/s)

Solution

= [log (27) − log (1.325) − log (1.334)] × 105

= [1.4314 − 0.1222 − 0.1252] × 105

= [antilog (1.184)] × 105

= 15.28 × 105 = 1.528 × 106 m/s.

The difference between the velocities of rays for red and violet colours in water is
1.528 × 106 m/s.

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APPEARS IN

 2012-2013 (October) (with solutions)
Question 6.3 | 3.00 marks
Solution The Refractive Indices of Water for Red and Violet Colours Are 1.325 and 1.334 Respectively. Find the Difference Between the Velocities of Rays for These Two Colours in Water. Concept: Polarisation.
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