How would you describe the image that would be produced by the convex lens in the drawing?
a real, upside-down image at point B
a real, upright image at point B
a virtual, upright image at point A
a virtual, upside-down image at point A
A real, inverted image at point B.
A concave lens _____.
produces real images only
produces real and virtual images
bends light rays away from the optical axis
is thicker at its center than at the edges
bends light rays away from the optical axis.
A convex lens with an object placed closer to it than its focal point _____.
cannot form a real image
forms a virtual image on the other side of the lens
forms a real image on the other side of the lens
forms a real image on the same side of the lens
forms a virtual image on the other side of the lens.
A concave lens _____.
can form images only on the side opposite the object
can only form real images
can only form virtual images
can form real and virtual images
can only form virtual images.
How would you describe the image that would be produced by the concave lens in the drawing?
a virtual, upright image at point A
a real, upside-down image at point B
a real, upright image at point B
a virtual, upside-down image at point A
A virtual, upright image at point A.
What is the purpose of the plane mirror in a reflecting telescope?
to gather light
to magnify the image
to reflect the image to the eyepiece
to keep the image in focus
The purpose of the plane mirror in a reflecting telescope is to reflect the image to the eyepiece.
Which instrument makes use of a concave mirror?
reflecting telescope
microscope
camera
refracting telescope
Reflecting Telescope.
The convex lens in an optical instrument’s eyepiece _____.
turns the image right side up
gathers light
focuses the light rays
magnifies the image
magnifies the image.
Optical instruments all use _____ either to magnify images or to gather and focus light.
convex mirrors
concave mirrors
concave lenses
convex lenses
Convex lenses.
A refracting telescope uses an objective lens _____.
to magnify the image
to gather light
to produce an upright image
to view very small objects