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I HOPE THIS HELPS YOU!!!!
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u-v = 10
u = 10+v --- (¡)
m = 1/4 = v/u
u =4v
10+v = 4v (using (¡))
10 = 4v - 1v
10 = 3v
v = 10/3
v = 3.33
u = 4v = 40/3
we have got the value of v and u, so we can find the value of f.
f = 40/9
f = 4.44
Thus the focal length of the concave lens is 4.44 cm
u = 10+v --- (¡)
m = 1/4 = v/u
u =4v
10+v = 4v (using (¡))
10 = 4v - 1v
10 = 3v
v = 10/3
v = 3.33
u = 4v = 40/3
we have got the value of v and u, so we can find the value of f.
f = 40/9
f = 4.44
Thus the focal length of the concave lens is 4.44 cm
prushti29:
*the focal length is -4.44 cm
yaa
you are right
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