Question

(a)
Complete the following ray diagram :
18 cm
10)
b)
C)
20 cm v
Find the nature, position and size of the image formed.
Use lens formula to determine the magnification in this case
OR
21​

Answer 1

Answer:

hey buddy ur question is not CLEAR

Answer 2

Answer:f = -30cm

u = -15cm

v = ?cm

1/f = 1/u + 1/v

1/-30 = 1/-15 + 1/v

1/v = 1/-30 - 1/-15

1/v = 1/30

v = 30cm

m=-v/u

m = -30/-15

m = +2

m=h¹/h²

2 = h¹/h²

h¹ = 2h²

The image formed is virtual and erect