Home › Scottish National 5 › Physics › Mirrors and Lenses › A convex mirror is used as a security mirror in …
A convex mirror is used as a security mirror in a shop. What kind of image does a convex mirror always form?
AA real, inverted image projected in front of the mirror
BA virtual image that appears to be behind the mirror
CA real image only when the object is far away
DA virtual image only when the object is very close
Answer & Solution
Correct answer: B. A virtual image that appears to be behind the mirror
1. A convex mirror always forms a virtual image, regardless of how far the object sits.
2. That image appears to be located behind the mirror, since the reflected rays only appear to diverge from a point there.
3. The word always rules out any option that makes the image real, or that makes the result depend on object distance.
_Source: OpenStax Physics (CC BY 4.0), Ch 16 "Mirrors and Lenses", section 16.1 Reflection_
Related questions
In an eye where the lens-to-retina distance is fixed at 2.00 cm, an object sits 50.0 cm awA lens produces a 5.00 cm tall image of an 8.00 cm tall object when the object is placed 1A book page is held 6.50 cm from a concave lens whose focal length is -10.0 cm. Using d_i A light bulb sits 0.75 m from a convex lens with a 0.50 m focal length. Using d_i equals fA lens has a focal length of 12.5 cm. Using P equals 1 over f, what is its power?Sunlight is focused by a magnifying glass to a bright spot 8.00 cm from the lens. Using P The thin-lens equation used for lenses is the same equation used earlier for curved mirrorWhat kind of spectacle lens corrects farsightedness, and how does it help?