Physics please help please? - illuminated magnifying mirror
A spherical concave mirror can be used to make an image on a sheet of paper project, so that the enlarged image of a real object illuminated for traceability. If you use a concave mirror with a focal length of 7.5 cm, where a piece of paper so that the image projected on it twice as far from the mirror that the object?
cm
What is the magnification?
Is the image on the right side or vice versa, real or virtual?
real and erect
virtual and vice versa
virtual and upright
real and inverted
Monday, January 11, 2010
Illuminated Magnifying Mirror Physics Please Help Please?
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1 comments:
Mirror is the formula
1 / u +1 / v = 1 / f
= Distance or the object
v = image distance and
f = focal length
Signing the agreement is the distance between the + ve in the direction of the incident beam
=> Real UV image f are all negative, which is the equation, as it is.
v = 2u
=> 1/2U + 1 / u = 1 / f
=> 3/2u = 1 / (7.5)
=> U = 11.25 cm and V = 22.5 cm
Real, inverted image of the extension 2 (= V / U) is formed 22.5 cm from the pole of the mirror.
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