Wavelength of visible light/PAR is

200-400 nm

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400-700 nm

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700-900 nm

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100-200 nm.

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Solution

The correct option is A 400-700 nm
Visible light falls within the range of 400-700 nm, and infrared light contains wavelengths from 700 nm to over 1 mm. In the visible light spectrum, the colours are determined by the length.
Longer wavelengths appear red while shorter wavelengths are blue/violet as they range closer to the ultraviolet spectrum.

So, the correct option is '400-700 nm'.

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Similar questions

Q. Find the range of frequency of light that is visible to an average human being

(400 n m < λ < 700 n m)

Q. What should be the minimum work function of a metal so that visible light is able to cause emission?
(visible light

=

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Q. Visible light has wavelengths in the range of

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780 n m

. Calculate the range of energy of the photons of visible light.

Q. White light is incident normally on a glass plate (in air ) of thickness

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and refractive index of

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. The wavelength (in nm ) in the visible region (

400 n m - 700 n m

) that is strongly reflected by the plate is:

White light is incident normally on a glass plate (in air) of thickness 500 nm and refractive index of 1.5. The wavelength (in nm) in the visible region (400 nm - 700 nm) that is strongly reflected by the plate is:

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