Question
Download Solution PDFWhich of the following instruments is used for the comparison of candle powers of different sources?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFPhoto meter
- A photometer is an instrument that measures the strength of electromagnetic radiation in the range from ultraviolet to infrared and includes the visible spectrum.
- These instruments are used for the comparison of candle powers of different sources.
- Most photometers detect the light with photoresistors, photodiodes, or photomultipliers.
- To analyze the light, the photometer may measure the light after it has passed through a filter or through a monochromator for determination at defined wavelengths or for analysis of the spectral distribution of the light.
Additional InformationRadiometer is a device used to measure the intensity of radiant energy.
Bunsen meter is used to visually compare the luminosity of two light sources.
A candle meter is a device that is used to measure the amount of light that falls on a surface.
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