(i) In which medium does the light move faster, water or diamond? (ii) What is the refractive index of diamond with respect to water? Refractive index = speed of light in vacuum / speed of light in medium. Since the refractive index of diamond is more, hence the speed of light is lesser in diamond.
Does light travel faster in water or diamond?
When light passes from air into a transparent and denser material such as glass, water or plastic it slows down. Light travels slower in diamond than it does in glass and slower in glass then it does in water. …
In which medium does the light moves faster?
Light waves do not need a medium in which to travel but sound waves do. Explain that unlike sound, light waves travel fastest through a vacuum and air, and slower through other materials such as glass or water.
In which medium light travels faster glass or diamond?
Answer: Light travels 1.636 times faster in glass than in diamond. The velocity in glass medium is equal to the 1.636 times the velocity of diamond. Hence, Light travels 1.636 times faster in glass than in diamond.
In which medium does the light move faster water or glass?
Light travels at approximately 300,000 kilometers per second in a vacuum, which has a refractive index of 1.0, but it slows down to 225,000 kilometers per second in water (refractive index of 1.3; see Figure 2) and 200,000 kilometers per second in glass (refractive index of 1.5).
How does light move through a diamond?
Light rays do not pass through the diamond, but are instead broken and reflected back in different angles. This optical trait of breaking light rays and reflecting them back creates the diamond’s unique sparkle.
Which medium has the lowest speed of light?
Notes: Light travels at approximately 300,000 kilometers per second in a vacuum, which has a refractive index of 1.0, but it slows down to 225,000 kilometers per second in water and 200,000 kilometers per second in glass. Speed of light is the lowest in diamonds.
What is the speed of light in diamond?
The speed of light in diamond is 125,000 kms^-1 . What is its refractive index ? (Speed of light in air = 3 × 10^8 m s^-1 ).
Why is the speed of light slower in water?
When light is transmitted through matter, it is acts absorbed and re-emitted every time it runs into a particle. In between the particles it does travel at the speed of light, but the absorption and emission takes a bit of time. With a liquid the particles are close together, so that really slows it down.
Why does light travel faster in water?
* Light slows down when it passes through other media, such as air or water. The presence of particles impedes the photons through scattering. … However, light travels at about 0.75c (75% light speed) through water. Some charged particles can move faster than 0.75c in water and therefore travel faster than light.
Is diamond a fast medium?
Although the speed of light v in a medium varies considerably from its value c in a vacuum, it is still a large speed.
Index of Refraction.
|Table 1. Index of Refraction in Various Media|
In which of the following media glass water and diamond light travels slowest?
The higher the index of refraction is, the slower the speed of light is. The indexes of refraction for diamond, air and glass are, respectively, 2.42, 1.00, and approximately 1.50, depending upon the composition of the glass. Light travels slowest in diamond.
How does the speed of light compare in water in glass and in diamond?
That change in direction is called refraction. Some indexes of refraction are diamond (2.419), glass (1.523), and water (1.33). … Light moves at about 124,000,000 meters per second (less than half the speed in a vacuum) in a diamond compared to 299,792,458 meters per second in a vacuum.