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Applications of spherical mirrors and lenses
Application of
spherical mirror (Concave mirror) (Spherical mirror means both concave and
convex but you were requested to write about concave mirror only)
i.
In torches and
headlights: The source of light is placed at the focus to obtain a parallel
beam of light.
ii.
In flood lights:
The source of light is placed just beyond the centre of curvature so as to get
intense beam of light.
iii.
Reflecting
mirrors for projector lamps: The object is placed at the centre of curvature to
obtain an image of the same size.
iv.
To collect heat
radiations in solar devices: Heat radiations from the sum coming from infinity
are brought to focus by concave mirror in its focal plane.
v.
Shaving mirror,
dentist’s mirror: It produces an erect virtual and highly magnified image of an
object placed between its pole and focus.
vi. Solar furnaces: Large concave mirrors are used to concentrate
sunlight to produce heat in solar furnace.