No glass is perfectly transparent. Mainly because of reflections, about 92% of light passes through an average sheet of clear windowpane. The 8% loss is not noticed through a single sheet, but through several sheets it is apparent. How much light is transmitted by three sheets?
To calculate how much light is transmitted through three sheets of glass, we need to consider the percentage of light that is transmitted through a single sheet. In this case, we are given that about 92% of light passes through a single sheet of clear windowpane.
To calculate the amount of light transmitted through multiple sheets, we can multiply the percentages together. Since each sheet transmits 92% of light, we multiply 92% by itself three times (since we have three sheets):
92% * 92% * 92% = 0.92 * 0.92 * 0.92 = 0.778688 = 77.87%
Therefore, three sheets of clear windowpane will transmit approximately 77.87% of the incident light.