Instrument used to measure relative abilities of pigments to absorb different wavelengths of light is _____?

Instrument used to measure relative abilities of pigments to absorb different wavelengths of light is _____?

روشنی کی مختلف طول موج کو جذب کرنے کے لئے روغن کی نسبتا صلاحیتوں کی پیمائش کرنے کے لئے _____ استعمال کیا جاتا ہے؟
Explanation

A photometer measures the intensity of light absorbed or transmitted by pigments at different wavelengths.

It is used to study absorption spectra, especially in photosynthesis research.