LIGHT

Nearly everythlng we see around is seen due to
1. incident light
2. refracted light
3. reflected light
4. all the above
What are used in submarines, tanks and also by soldiers in bunkers to see things outside?
1. kaleidoscope
2. periscope
3. all the above
4. none of the above
Designers of wallpapers and fabrics, and artists often use
1. kaleidoscope
2. periscope
3. all the above
4. none of the above
The shape of eye is
1. round
2. oval
3. spherical
4. rectangle
Splitting of light into its colours is known as
1. diffusion
2. refraction
3. dispersion
4. all the above
What part of eye contains several nerve cells?
1. iris
2. retina
3. pupil
4. all the above
The small opening in the iris of the eye is called
1. retina
2. iris
3. pupil
4. cornea
When we say that a person has green eyes, we refer actually to the colour of the
1. iris
2. retina
3. pupil
4. cornea
Sensations felt by the nerve cells are then transmitted to the braln through the
1. sensory nerve
2. nerve cells
3. optic nerve
4. all the above
What is a natural phenomenon showing dispersion?
1. rain
2. rainbow
3. acid rain
4. all the above