Question

In which of the following materials does light travel with the greatest speed?

A. Ethanol

B. Benzene

C. diamond

D. Glass

E. Quartz

Which of the following phenomena does not happen to light?

A. Reflection

B. Refraction

C. Sublimation

D. Doppler effect

En cuál de los siguientes materiales la luz viaja con mayor velocidad? O A. Etanol O B. Benceno O C. diamante OD. Vidrio O E. Cuarzo

Answer 1

A.) Ethanol .

C.) Sublimation ( it is conversion of solid directly into vapour phase).

AX Speed of light in any medium speed of light in air/vacuum Refractive Index To get greatest speed in the medium the medium should be of least Refractice Index Ethanol - 1.36 least Refractie Index Diamond - 2.42 Hence speed of light Glass - should be greatest Quarta- Ethanol has Benzene - 1.501 1.52 1.458
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