1. The simplest form of colorimeter is __________
(A) Microscope
(B) Gastroscope
(C) Laryngoscope
(D) Human eye
2. We find the color of unknown solution by __________
(A) Microscope
(B) Gastroscope
(C) Colorimeter
(D) Photometer
3. The visual region of electromagnetic spectrum range ______ is referred to as colorimeter method
(A) 400–700 nm
(B) 200–500 nm
(C) 800–1000 nm
(D) None of these
4. A major portion of energy emitted by a tungsten lamp is in the visible range and only about 15 to 20% is in the ______ region
(A) Ultraviolet
(B) Gamma rays
(C) X-rays
(D) Infrared
5. The main part of colorimeter is __________
(A) Prism
(B) Lamp
(C) Panel
(D) None of these