Advertisements
Advertisements
प्रश्न
A ray of light of wavelength 6600 Å suffer refraction from air to glass. Taking \[\ce{_a\mu_g = \frac{3}{2}}\], find the wavelength of light in glass.
उत्तर
We know that V = f λ
air μ glass = `"Velocity in vacuum or air"/"Velocity in glass"`
`3/2 = (f "air" xx λ "air")/(f "glass" xx λ "glass")`
However, light's frequency does not change as it refracts.
∴ f air = f glass
∴ `3/2 = (λ "air")/(λ "glass")`
λ glass = wave length in glass = `2/3 λ` air
λ glass = `2/3 xx 6600`
= 4400 Å
APPEARS IN
संबंधित प्रश्न
Explain the term absolute refractive index of a medium and write an expression to relate it with the speed of light in vacuum.
Name one factor that affects the lateral displacement of light as it passes through a rectangular glass slab.
“A ray of light incident on a rectangular glass slab immersed in any medium emerges parallel to itself.” Draw labelled ray diagram to justify the statement.
A ray of light falls normally on the surface of a transparent glass slab. Draw a ray diagram to show its path and also mark angle of incidence and angle of emergence.
A ray of light passes from air to water. In fig. 39, which of the ray A, B, C and D is the correct refracted ray?
Name two instruments of the total refracting prism in which is used.
Two parallel rays of Red and Violet travelling through the air, meet the air-glass boundary as shown in the above figure. Will their paths inside the glass be parallel? Give a reason for your answer.
The refractive index of glass with respect to air is 3/2. What is the refractive index of air with respect to glass?
The refractive index of glass with respect to air is 1.5. What is the value of the refractive index of air with respect to glass?
