Answered: A magnifying glass can focus sunlight… | bartleby

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A magnifying glass can focus
sunlight enough to heat up paper
or dry grass and start a fire. A
magnifying glass with a diameter
of 3.40 cm has a focal length of
6.80 cm. The mean distance of
the Sun from Earth is 1.50 × 10¹1
m. The mean radius of the Sun is
6.957 × 108 m.
If the intensity of the Sun falling
on the magnifying glass is 0.850
kW/m², what is the intensity of the
image of the Sun?

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