the distance of the principal focus from the pole of the mirror is called the dash of the mirror
Answers
Question:
The distance of the principal focus from the pole of the mirror is called the _____ of the mirror.
- The distance of the principal focus from the pole of the mirror is called the focal length of the mirror.
Additional information:
• If the magnification produced by a spherical mirror is in negative then the mirror is always “Concave Mirror.”
• If the magnification produced by a spherical mirror is in positive then the mirror is always “Convex Mirror.”
• If magnification is negative in a concave mirror then it's nature is “Real and Inverted” always.
• If magnification is positive in a concave mirror then it's nature is “Virtual and Erect” always.
• If in the ± magnification, magnitude > 1 then the image formed is “Enlarged”.
• If in the ± magnification, magnitude < 1 then the image formed is “Diminished”.
• If in the ± magnification, magnitude = 1 then the image formed is “Same sized”.
• If the focal length is positive then the mirror is “Convex Mirror.”
• If the focal length is negative then the mirror is “Concave Mirror.”
• R = 2f
• f = R/2
- Where, R denotes radius of curvature and f denotes focal length.