An object of height 2cm is placed in front of a convex lens of focal length
20cm at the distance of 15cm from it. Find their position and magnification of the image.
If you give the answer with working step by step I will mark you brainliest.
Answers
Answered by
2
Answer:Size of object h
o
=2cm
Size of the object h
i
=?
Focal length f=−12cm
Object distance u=−20cm
Image distance v=?
Using mirror formula
f
1
=
v
1
+
u
1
−12
1
=
v
1
+
−20
1
v
1
=
60
−5+3
v=−30cm
Magnification (M)=
h
o
h
i
=
u
−v
=
−20
30
=−1.5
h
i
=−1.5×2=−3cm
Image will be real, inverted and magnified.
Explanation:
Similar questions