Draw a ray diagram to show the path of a ray of light which is incident normally on a concave mirror and is reflected.
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Hey its simple
The object is AB and alight is reflected backfromm mirror to focal length f
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Merits:
Glass does not rust in moist air.
Glass does not let water pass through it.
Glass makes building attractive.
Glass cools the building inside.
They are tough and laminated so they provide protection to the building.
DeMerits
It is expensive and cost effective
It is brittle in nature, thus it breaks easily and can be harmful.
Glass can melt under very high temperature.
It loses its shine and attraction after some days and makes building unattractive
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