A flash of red light and a flash of blue light enter a glass cube perpendicular to its surface at the same time. after passing through the block, the red light pulse exits first.
For any medium, other than vacuum, the index of refraction for red light is slightly lower (closer to 1 ) than that for blue light. This means that when light goes from vacuum (or air) into glass, the red light deviates from its original direction less than does the blue light. Also, as the light reemerges from the glass into vacuum (or air), the red light again deviates less than the blue light. If the two surfaces of the glass are parallel to each other, the red and blue rays will emerge traveling parallel to each other, but displaced laterally from one another.
what is refractive index?
The ratio between the speed of light in medium to speed in a vacuum is the refractive index. When light travels in a medium other than the vacuum, the atoms of that medium continually absorb and re-emit the particles of light, slowing down the speed light.
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Answer:
ΔP = 986 Kpa
Explanation:
The solution is given in the pictures below
The one that help create radio waves is :
Changing electric and magnetic fields applied at right angles
Radio waves are transverse wave, which means that the oscillations occurring perpendicular to the direction of energy transfer
hope this helps
Refractive Index is the measure of bending of light rays.
Explanation:
- Index of refraction or Refractive Index is the measurement of the phenomenon exhibited by light rays - bending of light rays when passing from one medium to another.
- It can also be measured as the ratio between speed of light in vacuum or empty space to that of the speed of light in a given medium.
- Index of refraction is denoted by n and is calculated by the following formula
n = Speed of light in vacuum/Speed of light in the given medium = c/v
- It can also be measured using the angle of incidence and angle of refraction.
n = sin i/sin r where i is the angle of incidence and r is the angle of refraction
