Question

the diffraction grating spectroscope is based on the principle of dispersion, where light enters the device and is prismatically dispersed. true false

Explanation:

A diffraction - grating spectroscope operates based on the principle of diffraction. When light interacts with the diffraction grating (a surface with a periodic structure), it is diffracted at different angles depending on the wavelength of the light. In contrast, a prism spectroscope is based on the principle of dispersion (where light is separated into its component wavelengths due to the wavelength - dependent refractive index of the prism material).

Answer:

B. False