Question

In a Compound microscope, the intermediate image is
A. virtual, erect and magnified
B. real, erect and magnified
C. real, inverted and magnified
D. virtual, erect and diminished

Answer 1

Hint: A compound microscope is an optical device which produces magnified images of tiny objects. A good quality compound microscope can produce magnification in order of \[1000\]. In compound two lenses were used so that the combined magnification of the compound microscope is increased and a much magnified image of the tiny object is seen in the eye piece. The length of two lenses used is different. The objective (the lens near the object) is of small size whereas the eyepiece (the lens near the eye) is of different size.

Complete answer:
The compound microscope consists of two convex lenses one is called eyepiece and one is called objective. In a compound microscope the object is placed at a distance slightly greater than the focal length of the objective so that a real, inverted and magnified image is formed at the intermediate stage. Which will fall inside the focal length of the eyepiece and behaves like an object for the eyepiece. The intermediate image is in between the eyepiece lens and the focal point. So a virtual erect and magnified image of the intermediate image is formed by the eyepiece lens. So for a bigger magnified image of the actual object the intermediate image should be real, inverted and magnified.

So, the correct answer is “Option C”.

Note:
Compound microscope uses 2 convex lenses for better magnification. Magnification means how much the image is magnified in compared to the actual object. To get a sharper image a combination of images is used. In compound microscopes two images are formed, the first image is formed by an object which will then behave as an object for the eyepiece.