The instrument used to measure frequencies of light and quantity of light is known as a
A) flashlight
B) multimeter
C) monochromator
D) spectrophotometer

Question

Quizplus · Accepted Answer

A spectrophotometer is specifically designed to measure the frequencies and quantity of light. Flashlights and multimeters are not appropriate instruments for this type of measurement. While a monochromator can measure frequencies of light, it is not necessarily designed to measure the quantity of light.

The Instrument Used to Measure Frequencies of Light and Quantity