You are given a convex lens of focal length 15 cm. Draw a ray diagram to show the
image formed when the object is kept at a distance of 40 cm from the lens. (Use approp
plz tell full ans with diagram
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Answered by
1
answer is 60 cm as it is convex lens and formed behind the mirror
varshithraotirupati:
is is right??
Answered by
1
Answer :-
› Focal length of the convex lens = + 15 cm
› Object distance = - 40 cm
› Image distance = ?
By using the lens formula,
› 1/f = 1/v - 1/u
› 1/v = 1/f + 1/u
› 1/v = 1/15 - 1/40
› 1/v = 8-3/120
› 1/v = 5/120 = 1/24
› v = 24 cm
Magnification, m = v/u
› m = 24/40
› m = 3/5 -› size of the image as compared to the object.
Image - Real and Inverted.
Hope it helps!
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