If an object only reflects ultraviolet photons, what color would it look to us? white a) black b)c) redclear d)violet e)

The correct answer is option 'b': Black

Explanation:

As we know that the color that our eye perceives is the color of the component of the visible light that the object reflects. It means that if an object reflects wavelength of red light when white light is incident on it it will appear to be red.

in our case it is given that the object absorbs all the wavelengths of the visible light spectrum thus it will appear as black to our eye.

Now since our eyes cannot sense the ultraviolet spectrum of light thus we cannot observe any difference if the object emitted the UV radiation or not. Hence the object will appear to be black.

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