CameraIcon

SearchIcon

MyQuestionIcon

1

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

Image Formation by Spherical Mirrors

A convex lens...

Question

A convex lens has a focal length of 20 cm. Where should an object be placed in front of this convex lens so as to obtained an image which is real, inverted and same size as the object? Draw the ray diagram to show the formation of image in this case.

A

30 cm

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

B

20 cm

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

C

40 cm

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

D

10 cm

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

Open in App

Solution

The correct option is C 40 cm
When an object is placed at the centre of curvature in front of a convex lens, its image is formed at the centre of curvature on the other side of the lens. The image formed is real, inverted, and of the same size as the object.

Suggest Corrections

thumbs-up

1

Similar questions

Q. A convex lens has a focal length of

10 c m

. At what distance from the lens should the object be placed so that it forms a real and inverted image

20 c m

away from the lens? What would be the size of the image formed if the object is

2 c m

high? With the help of a ray diagram, show the formation of the image by the lens in this case.

Q. (a) What type of lens is used as a magnifying glass?
(b) What type of lens is used to correct the defect of vision called myopia?
(c) A convex lens has a focal length of 10.5 cm. Where should an object be placed in front of this convex lens so as to obtain an image which is real, inverted and same size as the object?

(i)

Where should an object be placed so that a real and inverted image of the same size as the object is obtained using a convex lens?

(i i)

Draw a ray diagram to show the formation of the image specified in the part

(i)

Q. A convex lens of focal length 20 cm is placed coaxially with a convex mirror of radius of curvature 20 cm. The two are kept 15 cm apart. A point object is placed 40 cm in front of the convex lens. Find the position of the image formed by this combination. Draw the ray diagram showing the image formation.

Q. A concave mirror has a focal length of 15 cm. Where should on object be placed in front of this mirror so as to obtain an image which is real, inverted and of the same size as the object?

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Image Formation by Spherical Mirrors - concept

PHYSICS

Watch in App

explore_more_icon

Explore more

Image Formation by Spherical Mirrors

Standard X Physics

Join BYJU'S Learning Program

CrossIcon