An object is placed at a distance of 60 cm from a concave lens of focal
length 15 cm. Determine the magnification of the lens.
Answers
Answered by
13
Answer:
given
u= -60cm
f=15cm
by using lens formula
1/f=1/v - 1/u
1/15= 1/v +60
1/v = 1/15 - 1/60
v = 20 cm
by using magnification formula
m= v/u
m=20/-60
m = -1/3 cm ans
Answered by
7
Given:
f = 15 cm
u = -60 cm
To Find:
Magnification of lens, m = ?
Solution:
By using Lens formula, we get
⇒
On putting the estimated values, we get
⇒
⇒
⇒
Now,
Magnification,
⇒
⇒
⇒
So that the Len's magnification will be "-1/3 cm".
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