Question

When the sun is seen through muslin cloth, a coloured spectra is observed due to___.

• A. interfaces of light
• B. diffraction of light
• C. refection of light
• D. polarization of light

Answer 1

The correct option is B diffraction of light

Muslin cloth is made up very fine threads and as such fine slip are formed. White light passing through the slip gets diffracted giving rise to coloured spectrum. The central maximum will be white while the secondary maxima (except central) depends upon wavelength of light. It is mainly because of diffraction of light.