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b. Consider

2ft

overhang
projection

for this

window.

Calculate
the height

of the

shadow on
the window

at noon on

equinox.
(Hint: Use

simple

calculations
, no Overhang projection = 2 feet

software Solar altitude = 75 degrees nd september
Delhi (29N Lat, 77E Long). on 22
required) Sun tangent = tan ( solar altitude)
= tan ( 75 degrees )
=
Length of the shadow = object height / sun
tangent
= 2 feet /
3.7
= 0.5 feet
length of the shadow on ground is 0.5 feet

Height of the shadow is 7 feet.
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