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3 years ago

8

A 29 cm pencil is placed 35cm in front of a convex lens and is illuminated by a spotlight. the focal point of the lens is 28cm f

rom the lens
a. what is the height of the pencils image?
b.how far from the lens will the image be focused?

1 answer:

vovikov84 [41]3 years ago

4 0

A) What is the height of the pencil image

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zloy xaker [14]

Answer:

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33.33 ns

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The accuracy by which I will be able to measure the echo time is 33.33 ns

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