double convex lens made of glass has refractive index 1.56 and both have radius of curvature of 20cm. if object is at distancence 10cm from lens find position of image
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Here, R1=20cm,R2=−20cm,u=−10cmandμ=1.56
Using lens marker's formula,
f1=(1.56−1)[201+201]⇒f=0.56×220=17.86cm
Now, from lens equation,
v=u+fuf=−10+17.86−10×17.86=−21.73cm
Since v is negative, the image will be formed on the same side as that of object.
Here, R1=20cm,R2=−20cm,u=−10cmandμ=1.56
Using lens marker's formula,
f1=(1.56−1)[201+201]⇒f=0.56×220=17.86cm
Now, from lens equation,
v=u+fuf=−10+17.86−10×17.86=−21.73cm
Since v is negative, the image will be formed on the same side as that of object.
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