Isolating Radiations | Learn under 10 min | Filters, Monochromators & Gratings | AI 02

This video tutorial explores optical elements used to isolate wavelengths of radiation, focusing on filters and monochromators. It covers absorption filters, which allow specific wavelengths to pass, and interference filters, which use wave interference to select wavelengths. The video also explains prism monochromators and diffraction gratings, both of which separate light into its component wavelengths. The tutorial concludes with a call to action for viewers to engage with the channel.

What is the primary function of optical filters in analytical instruments?

• To reflect all incoming light

• To change the color of light

• To isolate specific wavelengths of light

• To increase the intensity of light

Which material is NOT typically used to make absorption filters?

• Colored glass

• Silver layers

• Colored gelatin papers

• Colored solutions

What phenomenon is utilized by interference filters to isolate specific wavelengths?

• Interference

• Refraction

• Diffraction

• Reflection

In an interference filter, what determines the wavelength of light that is transmitted?

• The thickness of the spacer film

• The color of the glass plate

• The type of silver used

• The angle of incidence

What is the role of the prism in a prism monochromator?

• To absorb unwanted wavelengths

• To disperse light into its components

• To reflect light back to the source

• To increase the intensity of light

How can the desired wavelength be selected in a prism monochromator?

• By rotating the prism

• By adjusting the input slit

• By changing the light source

• By moving the output slit

What is the primary function of a diffraction grating?

• To separate light into different wavelengths

• To increase light intensity

• To reflect light

• To absorb light