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