0
What else can I help you with?
What is the focal length of concave mirror of radius 20cm?
The focal length of a concave mirror is half of its radius of curvature. Therefore, for a concave mirror with a radius of 20 cm, the focal length would be 10 cm.
For very small angles the focal length of a concave mirror is?
For very small angles, the focal length of a concave mirror is approximately half of the radius of curvature of the mirror. This is known as the mirror equation and holds true for small angles under the paraxial approximation.
What happens when half of concave mirror is painted black?
If half of a concave mirror is painted black, the reflective surface of the mirror will no longer be able to reflect light in those areas. As a result, the mirror will only be able to reflect light from the unpainted half, reducing its ability to form a clear image. This can distort the reflected image or create a shadowy effect on that half of the mirror.
What is the focal length of concave mirror to form real image?
The focal length of a concave mirror to form a real image is positive. It is equal to half the radius of curvature (R) of the mirror, and the image is formed between the focal point and the mirror.
What are the parts of concave mirror?
The main parts of a concave mirror are the pole (center point), principal axis (imaginary line passing through the pole and center of curvature), focal point (half the distance between the pole and center of curvature), and the center of curvature (center of the sphere from which the mirror is a section).
What is the focal length of concave mirror of radius 20cm?
The focal length of a concave mirror is half of its radius of curvature. Therefore, for a concave mirror with a radius of 20 cm, the focal length would be 10 cm.
For very small angles the focal length of a concave mirror is?
For very small angles, the focal length of a concave mirror is approximately half of the radius of curvature of the mirror. This is known as the mirror equation and holds true for small angles under the paraxial approximation.
What happens when half of concave mirror is painted black?
If half of a concave mirror is painted black, the reflective surface of the mirror will no longer be able to reflect light in those areas. As a result, the mirror will only be able to reflect light from the unpainted half, reducing its ability to form a clear image. This can distort the reflected image or create a shadowy effect on that half of the mirror.
What is the focal length of concave mirror to form real image?
The focal length of a concave mirror to form a real image is positive. It is equal to half the radius of curvature (R) of the mirror, and the image is formed between the focal point and the mirror.
What are the parts of concave mirror?
The main parts of a concave mirror are the pole (center point), principal axis (imaginary line passing through the pole and center of curvature), focal point (half the distance between the pole and center of curvature), and the center of curvature (center of the sphere from which the mirror is a section).
What is the relation between focal length and center of curvature?
The focal length of a concave mirror is about equal to half of its radius of curvature.
What is a shape of a convex mirror?
A convex mirror is curved outward like the back of a spoon, causing light rays reflected off it to diverge. The mirror bulges outward in the center and curves inward towards the edges, resulting in a wider field of view and a smaller, virtual image.
What Is the focal point of a concave mirror?
The focal point of a concave mirror is the point where parallel rays of light converge or appear to converge after reflection. It is located half the distance between the mirror's surface and its center of curvature. This focal point is a key element in determining the mirror's magnification and imaging properties.
What are the rules in concave mirror?
In concave mirrors, light rays that are parallel to the principal axis converge at the focal point. The rules for concave mirrors include: 1) light rays passing through the focal point reflect parallel to the principal axis, 2) light rays reflecting off the mirror pass through the center of curvature, and 3) the distance from the focal point to the mirror is half the radius of curvature.
What are the properties of images that a concave mirror can produce?
there is an imaginary point in front of the concave mirror, called the focal point or focus, which is half the length of the radius of the sphere of which the mirror was a part of(radius of curvature). usually an object if seen in between the mirror and focus gets magnified, beyond the focus, it gets inverted and reduced.
If A Concave Mirror Of Radius Of Curvature cm Produces An Inverted Image 4 Times The Size Of An Object Placed On And Perpendicular To The Axis. Determine By An Accurate Scale The Position Of the objec?
If the image produced is 4 times the size of the object and inverted, then the object is placed at a distance equal to half the radius of curvature from the mirror. This would position the object beyond the center of curvature of the concave mirror. Using an accurate scale, you would measure a distance of half the radius of curvature from the mirror to locate the object.
What is a concave mirror has a radius of curvature of 40.5 cm. how far is the mirror from the persons face?
The focal length of a mirror with a radius of curvature of 40.5 cm is half of the radius, so it is 20.25 cm. The mirror's face would be placed around this focal length distance from the person's face for optimal viewing.
