A convex lens of refractive in μ₁ is kept in a medium of refractive index (μ₂). A parallel beam of light is incident on the lens. Draw the path of the rays of light emerging from a lens. If
(a) μ₁ > μ₂
(b) μ₁ = μ₂
(c) μ₁ < μ₂

Explain Rayleigh's scattering law.

Explain about Tyndall scattering.

Explain about Raman scattering.

Write the classification of lenses in briefly.

Write the other types of lenses.

Explain the Refraction through a Convex lens.

Explain about the Refraction through a concave lens.

Write short notes about sign—convention (cartesian).

Describe the structure and working of the human eye.

Explain about Telescope and its types.

Write the advantages and disadvantages of Telescopes.

Explain power of Accommodation of the human eye.

Draw the ray diagram for the following object placed at
i) At infinity
ii) beyond C
iii) placed at 'C'
iv) between C and F
v) at the principle focus (F) then write the position, nature, and size of the image

Write about Cartesian sign conventions.