Spherical Mirror Formula:
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The spherical mirror magnification (m) is a dimensionless quantity that describes how much larger or smaller the image is compared to the object, and whether the image is upright or inverted. It's calculated as the negative ratio of image distance (v) to object distance (u).
The calculator uses the spherical mirror magnification formula:
Where:
Explanation: The negative sign indicates that when the image distance and object distance have the same sign (both positive or both negative), the image is inverted relative to the object.
Details: Calculating magnification helps determine the size and orientation of images formed by spherical mirrors, which is crucial in optical system design and analysis.
Tips: Enter both image distance (v) and object distance (u) in meters. Remember that object distance is typically taken as negative in the sign convention where light travels from left to right.
Q1: What does a negative magnification mean?
A: A negative magnification indicates that the image is inverted relative to the object.
Q2: What does a magnification between 0 and 1 mean?
A: A magnification between 0 and 1 means the image is smaller than the object (diminished).
Q3: What does a magnification greater than 1 mean?
A: A magnification greater than 1 means the image is larger than the object (magnified).
Q4: How does this relate to concave and convex mirrors?
A: The same formula applies to both concave and convex mirrors, but the sign conventions for v and u differ based on mirror type and image formation.
Q5: What are the limitations of this formula?
A: This formula assumes paraxial rays (close to the principal axis) and perfect spherical mirrors without aberrations.