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No. It's straight through the center of the sphere
that the curved surface is part of.
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∙ 10y ago
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Which term indicates the imaginary line that extends straight out from from the center of a reflective surface?
The imaginary line that extends straight out from the center of a reflective surface is the optical axis.
How would you find the surface area of a cylinder with circle bored out of it?
Actually, answer 1 is for the volume, not the surface area. Aside from that, there are lots of ways to bore a hole in a cylinder. If it goes from one base (a flat face) to the other (or part of the way) parallel to the axis, answer 1 is correct (for the volume). If it is not parallel to the axis, or if it is bored from the curved surface of the cylinder, it is much more complicated. Assuming, as in answer 1, that the hole goes all the way from one base to the other parallel to the axis, to get the surface area you would add the surface area of the outer cylinder to that of the hole (just the curved surface portion), and then subtract the areas of the circular holes in the two bases, each of which is pi x the radius of the hole squared. I'm assuming you know how to calculate the surface area of a cylinder. This is the area of the curved surface, which is 2 x pi x the radius x the height, plus 2 x the area of each base, which is pi x the radius squared. ========================================================== Use the formula:- Volume of a cylinder = Pi X Radius squared X Length , to find the volume of a solid cylinder. Repeat the same calculation with the same formula, to find the Volume of the cylinder of fresh air within the cylinder . Subtract the fresh air Volume from the Solid Cylinder Volume. That will be your answer . Think about your problem, then it is dead easy.
What line is parallel to the y-axis?
Any line with the equation [ x = any number ] is parallel to the y-axis.
What is the slope of a line that is parrel to the y- axis?
The slope (or gradient) if the line is parallel to the y-axis, is infinite. If it's parallel to the x-axis the slope is zero.
What is the center point of lens called?
axis or optical center
Which term indicates the imaginary line that extends straight out from the center of a reflective surface?
The imaginary line that extends straight out from the center of a reflective surface is the optical axis.
Are rays perpendicular to the principal axis of a concave mirror converge at or near the focal point?
It should be parallel. Rays "parallel to the principle axis of a concave mirror converage at or near the focal point.
Is a crystal ball a prism?
No. It does refract light, but it has a curved surface. Prisms typically have three or more sides that are parallel to a single axis. While a crystal ball does have an axis, too, it's "sides" are curved. Plus, being solid, it handles the light much differently than a prism does.
What is an optical axis?
optical axis
When the surface of a mirror curves like the inside of a bowl it is called a?
concave mirror
What is optic axis?
optical axis
Which indicates the imaginary line that extends straight out from the center of a reflective surface?
The imaginary line that extends straight out from the center of a reflective surface is the optical axis.
Which term indicates the imaginary line that extends straight out from from the center of a reflective surface?
The imaginary line that extends straight out from the center of a reflective surface is the optical axis.
In what way does the law of reflection hold for curved mirrors?
No. I don't honestly know why just that it doesn't because my teacher said so but she could be wrong. Some teachers can be pretty stupid. Yes of course. Don't spew nonsense. It's a LAW. All you have to do to prove this point, is to draw a semi-major axis, aka tangent to any point on the curved surface, draw the normal, then reflect the incoming ray. If you do this for parallel rays coming onto the curved surface, you'll realize that the reflected rays converge at one point, the focal point, because the curved mirror acts as a lens as well.
What is an easy definition of the optical axis?
An optical axis is a line along which there is some degree of rotational symmetry in an optical system such as a camera lens or microscope..
What is the difference between the optical axis and the visual axis?
optical axis passing through centeres of cornea,lens to retina.visual axis is line passing through fixation point to fovea.
What is a line that makes an angle of 90 degrees with a surface?
a line which is drawn parallel to either of axis makes 90 degree with other axis
