Question

bhi galat ya koch or mat bagna

Q. 27. 'A convex lens can form a
magnified erect as well as magnifiedinverted image of an object placed in front
of it.' Draw ray diagram to justify thisstatement stating the position of theobject with respect to the lens in eachcase. An object of height 4 cm is placed at a
distance of 20 cm from a convex lens of focallength 10 cm. Use lens formula to determinethe position of the image formed.​

Answer 1

u can use this formula

hope it will help you

Answer 2

Answer:

the position of object in first case is at F1 and in second case is between F1 and optical centre

Explanation:

lens formula

1/ f = 1/v -1/u

ho = 4cm

u = 20 cm

f = 10 cm

1/10 + 1/20 = 1/v

2/20 +1/20 = 3/20

3/20 = 1/v

v = 20/3

v = 6.6 cm

the image formed is 6.6 cm away from lens