Red coloured water bottle cast a shadow when placed in the path of light if it is replaced in an identical blue coloured water bottle, how would the shadows be different?

Dear student

the color of shadow of an object does not depend on clour of object. Shadow is always black in color because shadow is formed when an opaque object absorbs all the light falling from the light source due to which no light is reflected and it looks black.
So even if we will change the colour of bottle form red to blue same shadow will be formed

With regards

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The shadow will not be as bright when it comes to blue colour water bottle. Red is a solid colour, but on the other hand blue is a night light see through colour.
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The shadow of any object will be of black colour ,despite of the object being of any colour...Hence,the shadows will not differ as both of them would be black in colour.
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