Which of the following is the purpose of balance indicator in double beam photometer or colorimeter?
A. Selects particular wavelength
B. Splits the wavelength selected into two equal beams
C. Detects and indicates the amount of light falling on it
D. Indicates the difference between the output of two photometers
Answer:D
Which of the following is the purpose of balance indicator in double beam photometer or colorimeter?
A. Selects particular wavelength B. Splits the wavelength selected into two equal beams C. Detects and indicates the amount of light falling on it D. Indicates the difference between the output of two photometers
Explanation: It compares the output of the two photometers obtained using two beams. It indicates the output.