What happens when a concave mirror is placed in water?
What happens when a concave mirror is placed in water?
The focus of a concave mirror is situated at a distance which is half of the radius of curvature of the mirror. When kept inside water, the laws of reflections are still valid, thus the focal length of the concave mirror does not change.
How do you calculate refractive index of water?
Is the speed of light faster in glass or water? The speed of light is faster in water. The refractive index of water is 1.3 and the refractive index of glass is 1.5. From the equation n = c/v, we know that the refractive index of a medium is inversely proportional to the velocity of light in that medium.
How do you find the refractive index of a mirror?
A perfect mirror can be defined as having a reflection R=1 and a phase change upon reflection of 180 degrees. The Fresnel formula for reflection at an interface of air with material at perpendicular incidence is R=1−n1+n. R is the amplitude reflection, the intensity reflection (energy) is |R|2.
What is the refractive index of liquid?
Refractive index is measured by a standard method. It covers transparent and light colored liquids having a refractive index in the range from 1.33 to 1.50. The refractive index is the ratio of light velocity of a specified wavelength in air to its velocity in the substance under evaluation.
What happens to focal length of concave mirror when immersed in water?
The focal length of the concave mirror does not change when it is immersed in water because focal length of a mirror does not depend upon the refractive index of the medium. Refractive index of glass with respect to water is greater than refractive index of glass with respect to air.
What happens if concave mirror is used as rear view mirror guess and write?
If a concave mirror is used as a rearview mirror of a vehicle as a concave mirror produces the completely inverted image of the real image to be produced. When we use a concave mirror the image of the distant object gets inverted so it is not physically possible to use them.
What is the refractive index of water?
1.333
Typical values
| Material | n |
|---|---|
| Liquids at 20 °C | |
| Water | 1.333 |
| Ethanol | 1.36 |
| Olive oil | 1.47 |
How do you find the refractive index of glass with respect to water?
Refractive index of water w.r.t glass is 0.909. Calculation : From formula (i). =1.1 From formula (ii). =0.909.
How do you calculate refractive index of water with respect to glass?
What is refractive index of water relative to glass?
9/8
Refractive index of glass relative to water is 9/8.
