本题目来源于试卷: Light: Geometric Optics,类别为 IB物理学
[问答题]
What is the focal length of a 8q9r* e o2r)/qme /sdq -smxi2 s-pyibplane mirtcj ;7dv0qo,u0x za j8ror? What is the magnification of a plane mit ,7va0u cz0;jjq do8xrror?
参考答案: The
focal length of a plane mirror is infinity.
The magnification of a plane mirror is +1. As a
spherical mirror
gets a larger and larger radius, the front surface gets more and more
flat. The ultimate limit is that as the
radius (and focal length) of the spherical mirror goes to infinity, the front
surface becomes perfectly flat. For this
mirror, the image height and object height are identical (as are the image
distance and object distance) and the image is virtual, with a magnification of
m = +1.
本题详细解析:
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