Question

Rahul conducts an experiment using an object of height 10 cm and a concave lens with focal length 20 cm. The object is placed at a distance of 25 cm from the lens. Can the image be formed on a screen? *

1 point

yes, as the image formed will be real

yes, as the image formed will be erect

no, as the image formed will be virtual

no, as the image formed will be inverted​

Answer 1

If the object is placed at a distance of 25 cm from the concave lens with focal length 20 cm, the image would- not be obtained on screen, as the image formed will be virtual.

The correct option - no, as the image formed will be virtual

When the object is placed at any finite distance, then the image formed is always virtual.

So, if the object is placed at a distance beyond the focus of the concave lens, then the image will form between focal length and the pole of the lens, i.e. within 20 cm in this case.

Also, the size of the image will be smaller as compared to the object.

Since the image formed is virtual, it cannot be obtained on a screen.

Answer 2

Answer:

c: no, as the image formed will be virtual

Explanation:

Because the lens used is concave and concave lens always produce virtual image