Reflection Of Curved Mirrors Flashcards
What is a concave mirror
curves inwards
can magnigy and produce upright images (make up/shaving mirrors)
can also produce inverted image from a distance (telescope)
produces real images
What is a real image
forms when reflected rays CONVERGE to a point (focal point)
can be projected onto a screen (always inverted)
What kind of image is one when
- concave mirror used from a distance
- concave mirror used from a short distance
- real, inverted, magnified
2. virtual, upright, magnified
IF a concave mirror was very curved what would be effected
the focal length woudl be shorter
What is a focal point
teh point where incident rays parallel to teh principal axis
reflect and converge to (real)
refelct and diverge as if coming from virtual
What is a convex mirror
flex outwards
only produces upright smalle rimages
can see around corners (security mirros in shops/roads)
produces virtual images
What is a virtual image
form when reflected rays diverge
teh eyes/brain extropalate back along the rays
it is an optical illusion and connot be projected
IF a convex mirror was extra curved what would be effected
teh focal length would shorten
What kind of image is one when
- plane mirror
- convex mirror
- virtual, upright, same size
2. virtual ipright diminsihed