17. The radius of curvature of the mirror is m 20.0 (3) 0.10 m (4) 0.050 m (1) 0.30 m (2) 0.20 m 18. An object 0.20 meter tall is placed 0.15 meter to the left of the mirror. If the image is located 0.30 meter to the left of the mirror, the size of the image will be (1).0.10 m (2) 0.20 m ar enar (3) 0.30 m ib doidV (4) 0.40 m

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Speed of light

The speed at which the light travels in a vacuum is unbiased for both the source and inertial frame of reference of the observer. This was postulated by the physicist, Albert Einstein, by observing the theory of electromagnetism of Maxwell. Also, there was no evidence for the luminiferous aether, that is, the medium for the propagation of light where the electromagnetic field exists.