An observer to the right of a mirror - lens combination sees 2 reflections of an object. One reflection is upright and the other one is inverted. Both of the reflections are magnified 1,5 times. If the focal length of the lens is 9 cm and its distance from the glass/speculum is 30 cm, how much is the focal length of the glass/speculum?
Applications Of Reflection Of Light
When a light ray (termed as the incident ray) hits a surface and bounces back (forms a reflected ray), the process of reflection of light has taken place.
Sign Convention for Mirrors
A mirror is made of glass that is coated with a metal amalgam on one side due to which the light ray incident on the surface undergoes reflection and not refraction.
An observer to the right of a mirror - lens combination sees 2 reflections of an object. One reflection is upright and the other one is inverted. Both of the reflections are magnified 1,5 times. If the focal length of the lens is 9 cm and its distance from the glass/speculum is 30 cm, how much is the focal length of the glass/speculum?
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