88.7k views
5 votes
An object is placed at a distance of 60 cm from a concave lens of focal length. What is the position and nature of the image?

a. Real and inverted
b. Virtual and inverted
c. Real and upright
d. Virtual and upright

1 Answer

4 votes

Final answer:

The image formed by a concave lens when an object is placed at a distance of 60 cm is. Virtual and upright'. Concave lenses always produce virtual and upright images as they diverge light rays.

Step-by-step explanation:

When an object is placed at a distance of 60 cm from a concave lens of focal length, the nature of the image formed can be predicted using the properties of concave lenses. Concave lenses are diverging lenses, so they spread out light rays that are initially coming towards each other. This ultimately means that concave lenses cannot form real images because the light rays never actually converge in reality; they only appear to do so when extended backward.

Therefore, a concave lens will always produce a virtual image because diverging lenses cause the rays to spread apart. The image formed will appear to be on the same side of the lens as the object. Furthermore, the image will always be upright, because the light rays diverge, but when extended back, they appear to come from an upright position relative to the axis of the lens.

Based on these principles, the correct answer to the question of the position and nature of the image formed by a concave lens when the object is placed 60 cm away is d. Virtual and upright. This choice correctly identifies the nature of the image as not being real (because it can't be projected onto a screen) and describes its orientation as upright, which is a characteristic of all images formed by concave lenses, regardless of the object's distance from the lens.

User Arwed
by
8.9k points