Physics, 22.08.2019 20:30 ghadeeraljelawy
Anature photographer is using a camera that has a lens with a focal length of 3.06 cm. the photographer is taking pictures of ancient trees in a forest and wants the lens to be focused on a very old tree that is 10.4 m away. a) how far must the lens be from the film in order for the resulting picture to be clearly focused? answer in units of cm.
Answer from: arri05
film is at distance of 3.07 cm from lens
Explanation:
Given data
focal length = 3.06 cm
distance = 10.4 m = 1040 cm
to find out
How far must the lens
solution
we apply here lens formula that is
1/f = 1/p + 1/q
here f = 3.06 and p = 1040 so we find q
1/f = 1/p + 1/q
1/3.06 = 1/1040 + 1/q
1/ q = 0.3258
q = 3.0690 cm
so film is at distance of 3.07 cm from lens
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