State Snell’s law.

Draw a ray diagram to show the image formed by a convex lens when the object is placed between F and 2F.

Differentiate convex lens and concave lens.

What is power of accommodation of eye?

Why are traffic signals red in colour?

How is a rainbow formed?

Name and explain the types of scattering?

Explain the types of lens.

Write the application of convex lenses.

What are the other types of microscope and write is uses.

What is near point and far point of a human eye?

The colour of the sun is reddish during the sun rise and sunset. Explain why?

What is the function of Cornea?

Explain the function of Iris.

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