an object is placed at a distance of 50cms from a convex lens of focal length 20cm..find the nature and position if the image?
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use lens formula
1/v -1/u =1/f
here
u =-50cm
f=+20cm
1/v -1/(-50)=1/20
1/v=1/20-1/50=3/100
v=100/3=33.3cm
hence image is smaller then object and form just opposite side
1/v -1/u =1/f
here
u =-50cm
f=+20cm
1/v -1/(-50)=1/20
1/v=1/20-1/50=3/100
v=100/3=33.3cm
hence image is smaller then object and form just opposite side
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