Solved

The Intensity I of Light Varies Inversely as the Square DD

Question 185

Multiple Choice

The intensity I of light varies inversely as the square of the distance DD from the source. If the intensity of illumination on a screen 5 feet from a light is 4 foot candles, find the intensity on a screen 20 feet from the light.


A) 1141 \frac{1}{4} foot- candles
B) 2 foot- candles
C) 15\frac{1}{5} foot- candles
D) 14\frac{1}{4} foot- candles

Correct Answer:

verifed

Verified

Unlock this answer now
Get Access to more Verified Answers free of charge

Related Questions

Q180: Identify the given function as a

Q181: An experienced accountant can prepare a

Q182: <span class="ql-formula" data-value="\frac{x+2}{x^{2}-1}+\frac{x-3}{x^{2}+3 x-4}=\frac{2 x-3}{x^{2}+5 x+4}"><span class="katex"><span

Q183: Find all values of the variable

Q184: <span class="ql-formula" data-value="\frac{x-6}{(x+2)^{2}} \cdot \frac{x^{2}-4 x-12}{(x-6)^{2}}"><span class="katex"><span

Q186: Solve for the specified variable<br>- <span

Q187: Find the missing numerator and denominator.<br>-

Q188: For the given rational functions

Q189: Find the LCD of the given

Q190: Identify the given function as a