An object is placed 18 cm in front of a spherical mirror. If the image is formed at 4cm to the right of the mirror calculate its focal length. Is the mirror concave or convex? What is the nature of the image?
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Answer:
naturally image are formed in concave mirror
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Concave mirror its nature is that it’s convergent .
Concave mirror its nature is that it’s
divergent.
Convergent Beam
line intersects
meats
Divergent Beam
never meats
do not intersects
Parallel Beam
never meats
never intersects
The objects which have their own light luminous
The objects which do not have their own light are called non - luminous
Group of rays Beam
So the mirror will be Convergent means Concave mirror .
Some important things about concave mirror are -
Hi equal to Ho
U equal to V
Concave mirror its nature is that it’s
divergent.
Convergent Beam
line intersects
meats
Divergent Beam
never meats
do not intersects
Parallel Beam
never meats
never intersects
The objects which have their own light luminous
The objects which do not have their own light are called non - luminous
Group of rays Beam
So the mirror will be Convergent means Concave mirror .
Some important things about concave mirror are -
Hi equal to Ho
U equal to V
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