Advertisements
Advertisements
प्रश्न
How does the deviation produced by a prism depend on the refraction index of its material.
Advertisements
उत्तर
Dependence of prism deviation on material refractive index: At a given incidence angle, a prism with a higher refractive index produces a larger deviation than one with a lower index.
Example: Compared to a crown glass prism with the same refractive angle, a flint glass prism exhibits greater variation.
Since µflint > µcrown
APPEARS IN
संबंधित प्रश्न
In your laboratory you trace the path of light rays through a glass slab for different values of angle of incidence (∠i) and in each case measure the values of the corresponding angle of refraction (∠r) and angle of emergence (∠e). On the basis of your observations your correct conclusion is:
(a) ∠i is more than ∠r, but nearly equal to ∠e
(b) ∠i is less then ∠r, but nearly equal to ∠e
(c) ∠i is more than ∠e, but nearly equal to ∠r
(d) ∠i is less than ∠e, but nearly equal to ∠r
Draw the diagram of refraction of light in the glass slab
Draw a ray diagram showing the lateral displacement of a ray of light when it passes through a parallel sided glass slab.
Name the phenomenon responsible in the following case:
Twinkling of stars
What is the refractive index of vacuum
A ray of monochromatic light is incident from air into a glass slab. Draw a labelled ray diagram indicating the change in its path till it emerges out of the slab. In the diagram, mark the angle of incidence (i) and the angle of refraction (r) at the first interface. How is the refractive index of glass related to the angles i and r?
Draw ray of light bending towards the normal while passing from glass to water. Label your diagrams.
Light passes through a rectangular glass slab and through a triangular glass prism. In what way does the direction of the two emergent beams differ and why?
Trace a ray of light incident at 30° on a surface if travelling from glass to air. What is the angle of refraction in this case? (R.I. for glass = 3/2).
The refractive index of glass with respect to air is 3/2. What is the refractive index of air with respect to glass?
