Question by 123: An instance of a diverging spherical mirror is?
An instance of a diverging spherical mirror is?
a bathroom mirror.
a round Christmas tree ornament.
a flashlight reflector.
none of these.

A certain material has an index of refraction of two.25. What % of the speed of light in vacuum is the speed of light in the material?
75%
13%
25%
86%

A reflected ray of light leaves a plane mirror’s surface at an angle of 50 degrees relative to the typical. The angle of incidence was?
50 degrees relative to the surface.
50 degrees relative to the standard.
90 degrees from the surface.
none of these

Ideal answer:

Answer by jonal
1….
Christmas tree ornament. A mirror surfaced sphere acts in all components like a convex mirror, which is a diverging mirror.
http://2.bp.blogspot.com/_SlUORq8MswY/Sob4C9qaBFI/AAAAAAAABiE/XBog-wTzw9U/s400/waskey+mirror+ball+ornament.jpg

two….
The amount by which light slows in a offered material is described by the index of refraction, n.
The index of refraction of a material is defined by the speed of light in a vacuum c divided by the speed of light by means of the material v:

n = c/v

2.25 = 100% / x %

x% = 100% / two.25 = 44.four%

3….
50 degrees relative to the standard….angle of reflection = angle of incidence
http://scienceworld.wolfram.com/physics/AngleofReflection.html

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An example of a diverging spherical mirror is?
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