Question

4. Define and explain the dispersion of white light with the help of an example.
5. Distinguish between concave and convex mirrors.
6. Explain the set-up used by Newton to obtain a spectrum.
Complete the following chart with respect to images formed by conve
Object Position
Between the lens and the focus (F)
Image Position
On the same side of the lens as the
object.
N
Upright, e
tF
Inverted,
At infinity (the image formed
cannot be seen)
Beyond 2F
tween F and 2F
2F
At 2F
Inverted,
Inverted,
and real
ond 2F
Between F and 2​

Answer 1

Answer:

4.When white light is passed through a glass prism it splits into its spectrum of colours (in order violet, indigo, blue, green, yellow, orange and red) and this process of white light splitting into its constituent colours is termed as dispersion.

6.