Question

The diagram given below shows an object O and its image
Without actually drawing the ray diagram, state the following:
(i) Type of lens (Converging / Diverging)
(ii) Name two optical instruments where such an image is obtained.
(iii) List three characteristics of the image formed if this lens is replaced
by a concave mirror of focal length 'f and an object is placed at a
distance 'f/2' in front of the mirror.​

Answer 1

Answer:

1. type of lens = converging

2. telescope , microscope

3. sorry but really I dont know

Answer 2

Answer:

(i) converging lens, (ii) simple microscope and terrestrial telescope (iii) virtual, erect and magnified.

Explanation:

(i) The lens in the diagram has two convex surfaces.

• So, it is a biconvex lens.
• Biconvex lens converges the parallel rays of light onto a focal point.
• Hence, the lens in the diagram is a converging lens.

(ii) Object is placed between the principal focus the optic center.

• The image is formed on the same side of the object, and hence the image is erect, magnified and virtual.
• The instruments that gives erect, magnified and virtual are a magnifying glass or a simple microscope and the terrestrial telescope.

(iii) When an object is placed at a distance f/2 in front of the concave mirror, i.e., between the principal focus and the pole of the mirror, then the will be formed behind the mirror.

The image thus formed is virtual, erect and magnified.

For more info

https://brainly.in/question/7936322

https://brainly.in/question/315458