Ron fills a beaker with glycerin (n = 1.473) to a depth of 5.0 cm. if he looks straight down through the glycerin surface, he will perceive the liquid to be what apparent depth?

By law of refraction we know that image position and object positions are related to each other by following relation

here we know that

now by above formula

so apparent depth of the bottom is seen by the observer as h = 3.39 cm

firearm identification is the process of analyzing the bullets and cartridge cases left at a crime scene to determine if they came from a particular firearm. marks on the bullets and cartridges may be common to every firearm of that type. these are called class characteristics.

find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle