Question

In case of a compound microscope which of the following statement is/are correct?
1. The focal length of the eye piece is larger than the focal length of the objective.
2. The focal length of the eye piece is smaller than the focal length of the objective.
3. The image produced in a normal optical microscope is real.
4. The image produced in a normal optical microscope is virtual.
Select the correct answer using the codes given below.

• A. Only 1
• B. 1 and 4
• C. 2 and 3
• D. 2 and 4

Answer 1

The correct option is B 1 and 4

The aperture of eye piece is larger and thinner than that of objective lens, so focal length of eye piece is larger than that of objective lens.
Also, optical microscope forms a virtual image of the object.
Thus statements 1 and 4 are correct.