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Home /Doubts and Solutions/CBSE/Class 10/Physics/The Human Eye And The Colourful World

The Human Eye And The Colourful World Free Doubts and Solutions

Why does the sun appeares reddish early in the morning?

Asked by Lalithaong 28th September 2018, 2:58 PM

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Why does ocean appear blue and why do clouds appear white?pl answer asap😀😀😃tnx

Asked by B P 30th January 2017, 1:42 PM

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What is presbyopia? Can presbyopia treated by convex lens with suitable power?

Asked by mehaksri2001 11th January 2017, 12:19 AM

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Please give me :   The angle of deviation(∠δ) when a ray of light passes through a prism with angle of prism(∠BAC) = 60º. I want the angle of deviation(∠δ) if the ray strikes the prism with an angle of incidence(∠i) of 30º, 35º, 40º, 45º, 50º, 55º and 60º (Atleast 30º and 45º).

Asked by sureshkalanjoor 26th February 2016, 8:28 PM

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What is the approximate focal length of the normal eye lens with a diameter of the eyeball 2.3cm (i) when it focuses a faraway object? (ii) when it focuses an object at 25cm?

Asked by Jerlin George 11th February 2016, 3:34 PM

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How does light determine the colour of a diamond when all diaonds are chemically identical?

Asked by joshiraghavendra53 20th March 2015, 12:28 PM

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Why is it that the 7 colours recombine when they pass through a prism ?

Asked by raghavdinesh 6th March 2015, 7:50 PM

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Issac Newton showed that a glass prism can cause the dispersion of white light and he also showed about how if an inverted prism is kept near the other prism The 7 colours join back to form a white light . What if the second prism is kept upright ? What happens to the spectrum of colours ?

Asked by raghavdinesh 6th March 2015, 7:32 PM

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For a glass prism of refractive index 1.5 the angle of minimum deviation is equal to angle of prism . What is the angle of prism. What is the relation between angle i and angle r if the angle of deviation is minimum.

Asked by P S Lakshmi 5th March 2015, 9:47 PM

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why rainbow is always formed on opposite side of the sun. please answer fast before live chat ends

Asked by Sanchit Sharma 2nd March 2015, 6:41 PM