1. Which of the following is true about the Joly Photometer?

Last updated: 7/10/2022

1. Which of the following is true about the Joly Photometer? You can use the Joly Photometer to measure the absolute brightness (in W/m² for example) of a light source. You can use it to measure the relative brightness of the two light sources. The Joly Photometer is made of a solid block of wax The Joly Photometer is complicated to build and expensive.