Which phenomenon of light is responsible for the Tyndall effect?

Write the value of the near point of distinct vision for a normal eye.

Draw ray diagrams each showing $(i)$ myopic eye and $(ii)$ hypermetropic eye.

$(a)$ Explain the phenomenon of scattering of light. State the factor on which the colour of scattered light depends.
$(b)$ List any two natural phenomena based on the scattering of light.

When white light is incident on a blue pigment,which colors of light are reflected?

Draw a ray diagram showing the dispersion through a prism when a narrow beam of white light is incident on one of its refracting surfaces. Also,indicate the order of the colours of the spectrum obtained.