Polarisation and Dispersion (Leaving Cert Physics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is polarised light?
What is polarised light?
Light vibrating in one plane only
What happens when two polarising filters are placed at right angles to each other?
What happens when two polarising filters are placed at right angles to each other?
Ideally no light gets through
When light reflects off glass or water, what happens to it?
When light reflects off glass or water, what happens to it?
It becomes partially plane-polarised
How do polaroid sunglasses reduce glare?
How do polaroid sunglasses reduce glare?
By blocking horizontally polarised light
What is dispersion?
What is dispersion?
Separation of white light into colours
When white light passes through a prism, which colour is refracted the most?
When white light passes through a prism, which colour is refracted the most?
Violet
In the grating equation , what does represent?
In the grating equation , what does represent?
Spacing between grating lines
How many lines per millimetre do typical diffraction gratings have?
How many lines per millimetre do typical diffraction gratings have?
400-600 lines per mm
Which colour deviates most with a diffraction grating but least with a prism?
Which colour deviates most with a diffraction grating but least with a prism?
Red
What does polarisation demonstrate about light?
What does polarisation demonstrate about light?
Light is a transverse wave