Wiki User
∙ 11y agoIt's 1/0.8 = 1.25
Wiki User
∙ 11y agoThe index of refraction.
Also 1.5. That's how the index of refraction is defined.
Sound doesn't travel at all in a perfect vacuum. Sound needs a material substance to move anywhere.
The refractive index is the ratio of the speed of light in a vacuum to the speed of light in a medium.
In a rough, round figure? 930,000 to 1. Sound travels roughly 1/5 of a mile per second in air. Light travels 186,000 miles per second in a vacuum. In five seconds sound travels one mile. In five seconds, light travels 930,000 miles in a vacuum.
No, light travels slower in a material with a higher index of refraction compared to vacuum or air. This is because the speed of light is inversely proportional to the index of refraction of the material according to the equation v = c/n, where v is the speed of light in the material, c is the speed of light in vacuum, and n is the index of refraction.
Water's index of refraction is 1.333
1.331.33
The velocity of light travelling through a material relates to the index of refraction of that material. In this group, air has the lowest index of refraction, follow by water, fused quartz, and crown glass. This means like travels the fastest through air, then water, then fused quarts, and finally glass.
2 (no units)
The index of refraction for glass is 1.5. This value is calculated by dividing the speed of light in a vacuum by the speed of light in the material, which gives us 3.0 (speed in a vacuum) divided by 2.0 (speed in glass). This means light travels at 2/3 the speed in glass compared to a vacuum, resulting in an index of refraction of 1.5.
The index of refraction for glass is calculated by taking the speed of light in a vacuum and dividing it by the speed of light in glass. Since light travels 1.5 times faster in a vacuum, the index of refraction for glass would be 1 divided by 1.5, which equals 0.67.
The index of refraction.
Also 1.5. That's how the index of refraction is defined.
The index of refraction of a material is determined by its optical density, which is influenced by the speed of light through that material compared to the speed of light in a vacuum. The index of refraction may also depend on factors such as the material's composition, structure, and temperature.
It's (the speed of light in vacuum)/(the speed of light in the material) .
It's (the speed of light in vacuum)/(the speed of light in the material) .