WorksheetsDispersion and Spectrum
Total questions: 10
Worksheet time: 5mins
What is white light ?
A combination of a wide range colours.
A continuous range of colours
The natural agent that stimulates sights and makes things visible.
A camera that captures the image of an object in a similar way to the eye.
A continuous range of colours is called?
Addictive colours
White light
Spectrum
Iris
How does dispersion happen?
Dispersion happens when simple optical instruments have only one lens such as magnifying glasses and spectacles.
Dispersion happen whenever light is refracted.
Dispersion happens when magnifying glass uses a single lens to make objects look larger.
Dispersion happens when the sun doesn't produce pure white light hence why the colours of the rainbow don't exactly match the colours produced by the prism.
What is cornea?
The coloured part of the eye
The transparent front if our eyes which light passes through
The gap in the centre of iris.
Behind the pupil and focuses on rays of the light that pass through using refraction.
What are the uses of lenses in our eyes?
Lenses in our eye uses refraction to change the direction of light rays so that they all meet at a certain point.
Lenses are brings rays of light together toward a point called the focal point
What is a presbiopi?
Unable to see distant object clearly
Mostly genetic and others are caused by a result of a diseases
Unable to see nearby object clearly
Unable to see distant and nearby object clearly
Modern telescope captures images just like?
A pinhole camera
Our eyes
A digital camera
Insect’s eyes
What are the primary colours?
Red, yellow, blue
Red, green, blue
Yellow, magenta, blue
Green, magenta, red
Colour blindness are mostly caused by?
Accidents
Illnesses
Genetic
None
What does the pupil do when in low light?
The pupil will become larger
The pupil will shrink
The pupil will disappear
The pupil will stay the same
