Answer to Question #287824 in Optics for Manic

Question #287824

An optical instrument consist of a converging lens of focal lens 30cm, placed 20cm away from a diverging lens of focal lens 5cm. An object is placed 6m distance from the formal lens, calculate the position and magnification of the image form

1
Expert's answer
2022-01-16T13:11:22-0500

1F=1F1+1F2lF1F2,\frac 1F=\frac 1{F_1}+\frac 1{F_2}-\frac l{F_1F_2},

F=30 cm,F=30~cm,

f=dFdF,f=\frac{dF}{d-F},

f=31.6 cm,f=31.6~cm,

Γ=df,\Gamma=\frac df,

Γ=19.\Gamma=19.


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