Question

Closed

Answer 1

using this point , solve for a
\[1 = (1.5)^{2} a\]
\[a = \frac{1}{2.25} = \frac{4}{9}\]
focus is at 1/4a
\[\rightarrow \frac{1}{4*\frac{4}{9}} = \frac{9}{16}\]
microphone should be placed 9/16 ft from bottom of reflector