Question 25
A convex lens of focal length 20 cm can produce a magnified virtual as well as real image. Is this a correct statement? If yes, where shall the object be placed in each case for obtaining these images?

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Solution

Yes, a convex lens of focal length 20 cm can produce a magnified virtual as well as real image.
For a magnified virtual image, the object should be placed between the focus and the optical centre of the lens.
For a real image, the object can be placed anywhere apart from being placed between the optical centre and the focus of the lens.

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Q. Question 25
A convex lens of focal length 20 cm can produce a magnified virtual as well as real image. Is this a correct statement? If yes, where shall the object be placed in each case for obtaining these images?

Q. A convex lens of focal length 20 cm can produce a magnified virtual as well as real image. Is this a correct statement? If True = 1, False =0.

Type 0 or 1 as your answer

Q. An object is placed at the following distances from a convex lens of focal length

10 c m

.
(a)

8 c m

(b)

15 c m

(c)

20 c m

(d)

25 c m .

Which position of the object will produce ..............
i) a diminished, real and inverted image ?
ii) a magnified, real and inverted image ?
iii) a magnified, virtual and erect image ?
iv) an image of same size as the object ?

Justify your answer in each case.

An object is placed at the following distances from a convex lens of focal length 15 cm : (a) 35 cm (b) 30 cm (c) 20 cm (d) 10 cm Which position of the object will produce : (i) a magnified real image ? (ii) a magnified virtual image ? (iii) a diminished real image ? (iv) an image of same size as the object ?

"A convex lens can form a magnified erect as well as magnified inverted image of an object placed in from of it." Draw ray diagram to justify this statement stating the position of the object with respect to the lens in each case.
An object of height 4 cm is placed at a distance of 20 cm from a concave lens of focal length 10 cm. Use lens formula to determine the position of the image formed.

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Question 25 A convex lens of focal length 20 cm can produce a magnified virtual as well as real image. Is this a correct statement? If yes, where shall the object be placed in each case for obtaining these images?

Question 25
A convex lens of focal length 20 cm can produce a magnified virtual as well as real image. Is this a correct statement? If yes, where shall the object be placed in each case for obtaining these images?