10th Samacheer Quiz

Q1. Which statement is most directly related to Unit 2: Optics?

Refraction Cell wall Gravity Photosynthesis

Q2. Which phenomena mainly contribute to the formation of a rainbow?

Reflection only Dispersion and refraction Only light absorption Heat conduction

Q3. What is the nature of the image formed by a plane mirror?

Real and inverted Virtual and erect Real and erect Virtual and inverted

Q4. When light passes from air into glass, towards what does it generally bend?

Away from the normal Towards the normal No change Parallel to the surface

Q5. When an object is placed before a concave lens, the image is generally:

Real, inverted, enlarged Virtual, erect, diminished Real, erect, diminished Virtual, inverted, enlarged

Q6. The bending of light when it passes from one medium to another is refraction.

Refraction Reflection Dispersion Scattering

Q7. A convex lens is thicker at the centre than at the edges.

Convex lens Concave lens Plane mirror Prism