We wish to obtain an erect image of an object using a concave mirror of focal length 15 cm. What should be the range of distance of the object from the mirror? What is the nature o... We wish to obtain an erect image of an object using a concave mirror of focal length 15 cm. What should be the range of distance of the object from the mirror? What is the nature of the image? Is the image larger or smaller than the object? Draw a ray diagram to show the image formation in this case. (a) Name the type of mirror used in the following situations.
Understand the Problem
The question is asking how to determine the distance range of an object that will produce an erect image using a concave mirror with a given focal length. It also inquires about the nature of the image and requests a ray diagram to illustrate the image formation.
Answer
0 to 15 cm; virtual, erect, larger
The object distance should be between 0 and 15 cm. The image is virtual, erect, and larger than the object.
Answer for screen readers
The object distance should be between 0 and 15 cm. The image is virtual, erect, and larger than the object.
More Information
When the object is placed between the pole and the focus, the concave mirror forms a virtual and erect image. This is contrary to the usual real and inverted images formed when the object is beyond the focal point.
Tips
Ensure the object is within the focal length to achieve an erect image. Misplacing the object outside this range will result in an inverted image.
Sources
- Byju's - Erect image with a concave mirror - byjus.com
- Doubtnut - Erect image formation in concave mirror - doubtnut.com
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