Which of the following choices describes the type of image formed by a plane mirror?
2 answers:
Answer:
Virtual, Upright and the same size
Explanation:
As we know for plane mirror we have
image distance is same as that of object distance but on opposite side of the mirror.
now for the magnification we have
since magnification is positive so it must be virtual and upright image and since the magnitude of magnification is exactly 1 so it must be of same size as that of object size
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Answer:
12 units
Explanation:
This problem can be solved if we take into account the equation for a sphere
where we took that the radius is 13 units. If we take z=5 and we replace this value in the equation of the sphere we have
where we have taken x2 +y2 because if the equation of a circunference.
In this case the intersection is made when we take z=5, for this value the sphere and the plane coincides in values.
Hence, the radius is 12 units
I hope this is useful for you
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