To calculate the star image distance in a concave mirror with a radius of curvature of 1.70 m, you can use the formula:
Image Distance (di) = Radius of Curvature (R) - Object Distance (do)
The radius of curvature is the distance between the center of curvature and the vertex of the mirror. It is an important factor in calculating star image distance as it determines the shape of the mirror and the amount of light that is reflected.
Yes, the star image distance can be negative in a concave mirror with a radius of curvature of 1.70 m. This indicates that the image is formed behind the mirror, which is known as a virtual image.
The star image distance and radius of curvature are typically measured in meters (m) in this calculation. However, other units such as centimeters (cm) or millimeters (mm) can also be used as long as they are consistent throughout the calculation.
The radius of curvature is directly proportional to the size of the star image in a concave mirror. A larger radius of curvature results in a larger image, while a smaller radius of curvature results in a smaller image. Additionally, the location of the star image is determined by the focal length, which is half of the radius of curvature. A longer focal length will result in a closer image, while a shorter focal length will result in a farther image.