Question

In a direct vision spectroscope, light undergoes :

• A. deviation without dispersion
• B. dispersion without deviation
• C. both dispersion and deviation
• D. neither dispersion nor deviation

Answer 1

The correct option is C both dispersion and deviation

Direct vision spectroscope is use for quantitative examination of spectral composition of white light, radiant bodies etc.

The spectroscope has been designed to let the users look through a split spectrum of light decomposed by an optical system. The spectra superposition obtained on the graduated scale of the spectroscope. Hence in direct vision spectroscope light undergoes both dispersion and deviation.