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True or false: optical instruments

Exercise and reference answers

Questions
  1. Statement is true
    Yes
    Statement
    The least distance of distinct vision D is taken as 25 cm.
  2. Statement is true
    Yes
    Statement
    A telescope's magnifying power is f₀ divided by fₑ.
  3. Statement is true
    Yes
    Statement
    A compound microscope multiplies the two magnifications.
  4. Statement is true
    No
    Statement
    A telescope's magnifying power is fₑ divided by f₀.
  5. Statement is true
    Yes
    Statement
    Magnifying power compares the angle subtended by image and object.

Explanation

The least distance of distinct vision is taken as 25 cm throughout. Source: syllabus Physics Part II, Ch 9 Ray Optics and Optical Instruments.
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