Question 33
Draw ray diagrams showing the image formation by a concave lens when an object is placed

(a) at the focus of the lens
(b) between focus and twice the focal length of the lens
(c) beyond twice the focal length of the lens

Open in App

Solution

(a) at the focus of the lens

(b) between focus and twice the focal length of the lens

(c) beyond twice the focal length of the lens

Suggest Corrections

Similar questions

Draw ray diagrams showing the image formation by a convex lens when an object is placed

(a) between optical centre and focus of the lens
(b) between focus and twice the focal length of the lens
(c) at twice the focal length of the lens
(d) at infinity
(e) at the focus of the lens

Q. Draw ray diagrams showing the image formation by a convex lens when an object is placed at twice the focal length of the lens.

Q. Define principal focus of a convex lens. Draw light ray diagram of an image formed, when the object is placed in between principal focus

F

and

2 F

.
Write lens formula.
Calculate power of a lens if its focal length is

0.5 m

Q. Question 3
Where should an object be placed in front of a convex lens to get a real image of the size of the object?

(a) At the principal focus of the lens
(b) At twice the focal length
(c) At infinity
(d) Between the optical centre of the lens and its principal focus

(a) An object is placed 10 cm from a lens of focal length 5 cm. Draw the ray diagrams to show the formation of image if the lens is (i) converging, and (ii) diverging. (b) State one practical use each of convex mirror, concave mirror, convex lens and concave lens.

Join BYJU'S Learning Program

Explore more

Telescopes

Standard IX Physics

Join BYJU'S Learning Program

Question 33 Draw ray diagrams showing the image formation by a concave lens when an object is placed (a) at the focus of the lens (b) between focus and twice the focal length of the lens (c) beyond twice the focal length of the lens

(a) at the focus of the lens (b) between focus and twice the focal length of the lens (c) beyond twice the focal length of the lens

Question 33
Draw ray diagrams showing the image formation by a concave lens when an object is placed

(a) at the focus of the lens
(b) between focus and twice the focal length of the lens
(c) beyond twice the focal length of the lens

(a) at the focus of the lens

(b) between focus and twice the focal length of the lens

(c) beyond twice the focal length of the lens