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Samuels PS Light Optics
Test Description: Physical Science Light Optics.
Instructions: Answer all questions to get your test result.
1) This effect of refraction is also known as twinkling of stars, where starlight appears to change brightness as light passed through our atmosphere.
A
scintillation
B
rainbow
C
mirror
D
mirage
2) When light hits an obstacle and bounces off, it is ______.
A
repulsion
B
reflection
C
interference
D
diffraction
3) This states that the angle of incidence equals the angle of reflection.
A
Principle of interference
B
Law of refraction
C
Law of reflection
D
Principle of diffraction
4) A mirror that is curved inwards, away from you, like a cave is ______.
A
convex
B
spherical
C
convoluted
D
concave
5) A mirror that is curved outwards is ______.
A
convex
B
convoluted
C
concave
D
spherical
6) As light passes through water, it causes fish to appear further away due to _____.
A
destructive interference
B
constructive interference
C
refraction
D
diffraction
7) From a distance, you may see light waves refracting in the heated air making it appear as if water is on the ground. This is an example of a _____.
A
rainbow
B
mirage
C
mirror
D
scintillation
8) Millions of droplets in the air disperse white light into colors creating a _____.
A
scintillation
B
mirror
C
rainbow
D
mirage
9) Due to interference of light in a bubble, multiple colors can be seen, which is called _____.
A
opaque
B
invisible
C
opalescence
D
iridescence
10) Sunglasses use _____ to only allow beams of light moving in a certain direction to pass.
A
mirrors
B
prisms
C
diffraction
D
polarization
*select an answer for all questions
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