Why sea water appears blue in colour?

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Kavitha Sampath Kumar

Experienced Mathematics com ECE Educator

When white light falls on sea, longest wavelength light (i.e., red, orange and yellow) are absorbed by water and remaining short wavelength light blue gets reflected. That's why sea and as well sky looks blue in colour
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In the usual case, the colour of any object that we see is due the wavelength of light that is reflected by the object. In case of water, all wavelenths except for blue are absorbed, thus reflecting blue, and hence the colour of waterappears blue. Sometimes though, we might see that water appears green...
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In the usual case, the colour of any object that we see is due the wavelength of light that is reflected by the object. In case of water, all wavelenths except for blue are absorbed, thus reflecting blue, and hence the colour of waterappears blue. Sometimes though, we might see that water appears green or maybe some other colour. This is due to the presence of suspended particles in water, which changes the absorption patern of water, giving it a differet colour. Hope this answers your question! :) read less
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Math Magician

The sea water appears blue because red, orange and yellow (long wavelength light) are absorbed more strongly by water than is blue (short wavelength light). So when white light from the sun enters the ocean, it is mostly the blue that gets returned. Same reason the sky is blue.
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labhome

reflection of sky
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Postgraduate in microbiology with 11 years teaching experience

scattering of light
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Teacher

hai Apoorva ..Your are asking a question Apoorva :) lets us take an example...comb nicely..fit your dress gently...just smile..and look your face in the mirror .....what amazing....what is in the mirror???YES its you..Why?you are in front of the Mirror...again...why? IT REFLECTS YOU (IMAGE)... 1) Reflection is...
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hai Apoorva ..Your are asking a question Apoorva :) lets us take an example...comb nicely..fit your dress gently...just smile..and look your face in the mirror .....what amazing....what is in the mirror???YES its you..Why?you are in front of the Mirror...again...why? IT REFLECTS YOU (IMAGE)... 1) Reflection is it light a single color ..what is your opinion about VIBGEYOR...:) Most Autos, four wheeler are in Yellow Color ?? :) (specially in SCHOOL BUS) Which Color is your Favorite Color...Red?Yellow?Rose?Pink?...ha..ha... Right you are attracted by some colors ...bcz you observed very much on this..bcz its wave length 2)red, orange and yellow (long wavelength light) are absorbed more strongly by water than is blue (short wavelength light) What is the Specialty in COLOR BLACK .? (Is it Black A COLOR ??What about WHITE?) read less
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Dedicated Teacher With Lots of Teaching Experience In Maths For All Boards

Light white light falls on sea, all colours other than blue is observed. So the blue colour is returned. this is the reason sea water appears blue in colour.
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Sea water appears blue due to reflection and absorption of light, sea water absorbs higher wavelengths such as red and reflects the lower wave length blue and hence we see blue colour
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