Question

terms:
(a) centres
5.
amalan
(b) 35 cm (c) 15 cm
distance of
(a) 55 cm
from the lens.
194
the nature, size and position of the image formed when the objectiske
We are given a convex lens of focal length 20 cm. Draw ray diagrama
BIG GERG
(Note: For drawing ray diagrams, use an appropriate scale.)​

Answer 1

Answer:

you can use the formula

1

f

=

1

u

+

1

u

′

plug the given values into formula

f

=

15

cm

u

=

25

c

m

u

′

=

?

1

15

=

1

25

+

1

u

′

1

u

′

=

1

15

−

1

25

1

u

′

=

5

−

3

75

1

u

′

=

2

75

u

′

=

75

2

u

′

=

37.5

cm

g

c

=

u

′

u

g

3

=

37.5

25

g

=

3

⋅

37.5

25

g

=

4.5

cm

put this together and you will get the answer sorry it looks like this!

Explanation: