Optical Instruments -Multiple Choice Questions Quiz

Interactive MCQs on “Optical Instruments”:

Solve the following 10 questions. Only one option is correct. Click on the “Submit” button when done. Click on the “embed” button to use this quiz on your website. Click on “WhatsApp” to share this quiz.

Question 1: What is the purpose of a microscope?

(a) To measure distances accurately
(b) To view distant objects
(c) To magnify and examine small objects or organisms
(d) To analyze the composition of materials

Question 2: Which optical instrument is used to view distant objects, such as landscapes and astronomical bodies?

(a) Telescope
(b) Microscope
(c) Spectrometer
(d) Binoculars

Question 3: What is the function of a spectrometer?

(a) To magnify and examine small objects
(b) To view distant objects in space
(c) To analyze the composition of materials based on their spectral characteristics
(d) To measure the intensity of light in a given direction

Question 4: Which optical instrument is used to measure the refractive index of a transparent substance?

(a) Telescope
(b) Spectrometer
(c) Refractometer
(d) Microscope

Question 5: How does a periscope work?

(a) It magnifies distant objects using multiple lenses.
(b) It measures the angles of light rays to calculate distances.
(c) It reflects light using multiple mirrors to view objects above the observer's line of sight.
(d) It analyzes the spectrum of light to identify chemical elements.

Question 6: What is the function of a spectrophotometer?

(a) To magnify and examine small objects
(b) To view distant objects in space
(c) To analyze the composition of materials based on their spectral characteristics
(d) To measure the intensity of light in a given direction

Question 7: What optical instrument is used to correct vision problems caused by refractive errors in the eye?

(a) Telescope
(b) Microscope
(c) Spectrometer
(d) Eyeglasses or contact lenses

Question 8: What is the purpose of a magnifying glass?

(a) To view distant objects in space
(b) To analyze the composition of materials based on their spectral characteristics
(c) To measure distances accurately
(d) To magnify small objects for easy viewing

Question 9: Which optical instrument is used to split white light into its component colors to create a spectrum?

(a) Telescope
(b) Microscope
(c) Spectrometer
(d) Prism

Question 10: What is the purpose of a camera?

(a) To view distant objects in space
(b) To analyze the composition of materials based on their spectral characteristics
(c) To magnify and examine small objects
(d) To capture and record images of the visible world