CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Mirror Formula Formal Proof

When an objec...

Question

When an object is placed at a distance of $20$ cm from concave lens, then small image is formed. Then the correct statement will be:

A

Image will be inverted

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

Image may be real

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

Image is formed at

20

cm distance

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

The focal length of the lens may be less than

20

cm

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D The focal length of the lens may be less than $20$ cm
The focal length of the lens may be less than $20 c m .$

Suggest Corrections

thumbs-up

0

Similar questions

Q. A concave lens has a focal length of 20 cm. At what distance from the lens a 5 cm tall object be placed so that it forms an image at 15 cm from the lens? Also calculate the size of the image formed.

Q. At what distance the object should be placed in front of a concave lens of focal length 20 cm so that the image will be formed at distance 10 cm from the lens? What is the magnification of the object?
[4 MARKS]

Q. The focal length of a concave mirror is

20

cm. An object is placed at distance

20

cm from mirror. Its image will be formed

Q. A convex lens of focal length

30 c m

forms an image of height

2 c m

for an object situated at infinity. If a concave lens of focal length

20 c m

is placed coaxially at a distance of

26 c m

in front of convex lens the size image would be

Q. A convex lens of focal length

10 cm

in contact with a concave lens of focal length

20 cm

. This combination is used to focus an object positioned

30 cm

infront of combination. The image will be formed at a distance of

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Total Internal Reflection

PHYSICS

Watch in App

explore_more_icon

Explore more

Mirror Formula Formal Proof

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon