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23 Nov 2019
Electromagnetic radiation (light) consists of waves. More than acentury ago, scientists thought that light, like other waves,required a medium (called the ether) to support its transmission.Glass, having a typical mass density of ? = 2410 kg/m3, alsosupports the transmission of light. What would the elastic modulusof glass have to be to support the transmission of light waves at aspeed of v = 2.01 · 108 m/s? (For comparison: the actual elasticmodulus of window glass is 5 · 1010 N/m2.)
Electromagnetic radiation (light) consists of waves. More than acentury ago, scientists thought that light, like other waves,required a medium (called the ether) to support its transmission.Glass, having a typical mass density of ? = 2410 kg/m3, alsosupports the transmission of light. What would the elastic modulusof glass have to be to support the transmission of light waves at aspeed of v = 2.01 · 108 m/s? (For comparison: the actual elasticmodulus of window glass is 5 · 1010 N/m2.)
Jarrod RobelLv2
30 May 2019
