Refraction of Light (Leaving Cert Physics): Flashcards
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13 cards from this deck
Refraction of light
Refraction of light
Bending of light when it travels from one medium to another
Incident ray
Incident ray
Ray of light falling on the boundary between two media
Refracted ray
Refracted ray
Ray that has passed into second medium and changed direction
Normal (in refraction)
Normal (in refraction)
Imaginary line perpendicular to surface where light hits it
Angle of incidence ()
Angle of incidence ()
Angle between incident ray and the normal
Angle of refraction ()
Angle of refraction ()
Angle between refracted ray and the normal
Light entering denser medium bends...
Light entering denser medium bends...
Towards the normal
Light entering rarer medium bends...
Light entering rarer medium bends...
Away from the normal
Light hitting surface at right angle
Light hitting surface at right angle
No refraction occurs
Cause of refraction
Cause of refraction
Light travels at different speeds in different media
Light speed in denser media
Light speed in denser media
Slower than in rarer media
Swimming pool depth due to refraction
Swimming pool depth due to refraction
Appears less deep than it actually is
As angle of incidence increases, angle of refraction
As angle of incidence increases, angle of refraction
Also increases but not proportionally