Advertisements
Advertisements
प्रश्न
Complete the ray diagram given below to show the nature of light produced on the screen.
The completed ray diagram is as shown below:
Advertisements
उत्तर
Explanation:
-
A beam of white light enters the first glass prism A.
-
It gets dispersed into its constituent colors, mainly Violet (V) and Red (R) shown here.
-
This is called dispersion of light.
Then, these separated colors pass through a second identical prism B, which is placed in the inverted position compared to A. The second prism recombines the colors back into white light. So, the light coming out of prism B and reaching the screen is white light again.
APPEARS IN
संबंधित प्रश्न
In the following ray diagram the correctly marked angle are:
(a) ∠i and ∠e
(b) ∠A and ∠D
(c) ∠i, ∠e and ∠D
(d) ∠r, ∠A and ∠D
A student is observing a diagram showing the path of a ray of light passing through a glass prism. He would find that for all angles of incidence the ray of light bends:
As light rays emerge from a glass prism into air, are they refracted towards or away from the normal?
When a ray of light enters a prism, it bends ______ the normal; as it leaves the prism, it bends ______ the normal.
In the figure given alongside, a narrow beam of white light is shown to pass through a triangular glass prism. After passing through the prism, it produces a spectrum YX on the screen.
- State the colour seen
- at X, and
- at Y.
- Why do different colours of white light bend through different angles with respect to the incident beam of light?
Why do you not see a spectrum of colours when light passes through a flat pane of glass?
What conclusion do you draw about the nature of white light in part (b)?
Refer to fig
(i) Name the lens L.
(ii) What are the points O, O' called?
(iii) Complete the diagram to form the image of the object AB.
(iv) Write three characteristics of the image.
The splitting of white light into its component colours is called ____________.
______ colour is deviated the least in the spectrum of white light obtained with a glass prism.
