According to the chapter, the wavelength range of radiation to which t…

Question

According to the chapter, the wavelength range of radiation to which the human eye is sensitive lies between which two values?

Accepted Answer

C. 400 nm and 700 nm

1. The chapter states the wavelength of radiation to which our eyes are sensitive is between 400 and 700 nm.
2. Within this band, violet is near 400 nm (smallest) and red near 700 nm (largest).
3. The ranges 100-400 nm and 700-1000 nm lie outside the visible band, so they are rejected.
4. Hence the visible range is 400 nm to 700 nm.
_Source: Balbharati (Maharashtra Board) Class 10 Science & Technology, Ch 6 "Refraction of Light", p.86_

Answer

700 nm and 1000 nm

Answer

200 nm and 500 nm

Answer

100 nm and 400 nm