10 cm from the mirror.
The focal length of a concave mirror is about equal to half of its radius of curvature.
The radius of curvature and the focal length mean the same so the radius of curvature is also 15 cm.
I don't think so. The focal length would remain the same. It mainly depends on the radius of curvature of the mirror.
It is the point , on the central axis, where light, that is parallel to the central axis, passes thru after it is reflected from the mirror. It is also at a distance from the mirror equal to twice the radius of curvature of the mirror.
Focal length, positive number with a concave mirror, negative for a convex mirror.
The focal length of a concave mirror is about equal to half of its radius of curvature.
Real, Enlargened
The radius of curvature and the focal length mean the same so the radius of curvature is also 15 cm.
I don't think so. The focal length would remain the same. It mainly depends on the radius of curvature of the mirror.
It is the point at which light comes to a focus at a single point in space at a certain distance from the mirror relative to its curvature.
A convex mirror bulges out. A concave mirror curves inward.For a convex mirror, light rays are reflected to meet at a point, while, for a concave mirror, light rays seem to be reflected from a point. If the incident rays were paraxial, the reflected rays are reflected to meet at, or appear to be reflected to a point referred to as the focal point of the lens. For a convex mirror, the focal point is real, while, that of a concave lens is virtual.
rough focal length of concave mirror
Basically because, in a convex mirror, the curvature is the opposite of that of a concave mirror. It's bevaviour is opposite, too: incoming light is spread out, instead of being focussed.
The focal length of a convex mirror is half of its radius of curvature.
It is the point , on the central axis, where light, that is parallel to the central axis, passes thru after it is reflected from the mirror. It is also at a distance from the mirror equal to twice the radius of curvature of the mirror.
It is the point , on the central axis, where light, that is parallel to the central axis, passes thru after it is reflected from the mirror. It is also at a distance from the mirror equal to twice the radius of curvature of the mirror.
The image of the star will be 67.5 cm from the mirror because focal length is the raidus of curvature multiplied by 2 or (2)(C). So, therefore, 150 / 2 will give the focal length which would also be the answer.