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OPTICAL INSTRUMENTS MCQs

Total Questions : 7
Question 1. In an optical fiber, the concept of Numerical aperture is applicable in describing the ability of __________
  1.    Light Collection
  2.    Light Scattering
  3.    Light Dispersion
  4.    Light Polarization
 Discuss Question
Answer: Option A. -> Light Collection
Question 2. In which of the following instruments, the objective has a large focal length and a very large eyepiece?
  1.    Simple microscope
  2.    Compound microscope
  3.    Telescope
  4.    Camera
 Discuss Question
Answer: Option C. -> Telescope
Question 3. Which of the following can form an enlarged image?
  1.    Convex mirror
  2.    Plane mirror
  3.    Convex lens
  4.    Concave lens
 Discuss Question
Answer: Option C. -> Convex lens
Question 4. Which of the following is NOT part of a reflecting telescope?
  1.    Plane mirror
  2.    Concave mirror
  3.    Convex lens
  4.    Concave lens
 Discuss Question
Answer: Option D. -> Concave lens
Question 5. Finger prints are observed by the use of :
  1.    Telescope
  2.    Microscope
  3.    Newtonian telescope
  4.    Concave lens
 Discuss Question
Answer: Option B. -> Microscope
Question 6. Which part is not included in the fiber-optic communication system?
  1.    Transmitter
  2.    Transmission channel
  3.    Transformer
  4.    Receiver
 Discuss Question
Answer: Option C. -> Transformer
Question 7. We combine two lenses, one is convex and other is concave having focal lengths /, and f2 and their combined focal length is F
  1.    f1 > f2
  2.    f1 = f2
  3.    f1 < f2.
  4.    f1 ≤ f2
 Discuss Question
Answer: Option A. -> f1 > f2

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