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Which photometer is used for comparing the light of the same colors?

  • Bunsen photometer is used for comparing the light of the same colors.
  • A Bunsen photometer is an instrument that is used to compare the intensity of two light sources of the same color.
  • It works on the principle of the balance of brightness, where the brightness of two light sources is adjusted until they appear equally bright to an observer.
  • The Bunsen photometer consists of a viewing tube or a telescope with a screen that is placed in front of it.
  • The light sources that need to be compared are placed on either side of the screen.
  • A movable mirror is placed between the two light sources, which can be adjusted to reflect the light from one source toward the screen, while the other source is reflected away from the screen.