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For an object at infintiy, a concave mir...

For an object at infintiy, a concave mirror produces an image at its focus which is

A

enlarged

B

virtual

C

erect

D

real, inverted and diminished

Text Solution

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The correct Answer is:
To solve the question regarding the image produced by a concave mirror when the object is at infinity, we can follow these steps: ### Step-by-Step Solution: 1. **Understanding the Setup**: - We have a concave mirror and an object placed at infinity. When an object is at infinity, the light rays coming from it are parallel. 2. **Ray Diagram**: - Draw a concave mirror, marking the principal focus (F) and the center of curvature (C). - Since the object is at infinity, draw parallel rays coming towards the mirror. 3. **Reflection of Rays**: - According to the laws of reflection, the parallel rays will converge after reflecting off the mirror. - The point where these rays converge is the focus (F) of the mirror. 4. **Characteristics of the Image**: - The image formed at the focus (F) is where the rays meet. - Since the object is at infinity, the image will be very small, indicating that it is diminished. 5. **Type of Image**: - The image formed by a concave mirror when the object is at infinity is real because it is formed on the same side as the object (the left side of the mirror). - The image is also inverted, as the nature of the image formed by concave mirrors is that they invert the object. 6. **Conclusion**: - Therefore, the image produced by a concave mirror for an object at infinity is real, inverted, and diminished. ### Final Answer: The correct option is that the image is **real, inverted, and diminished**. ---
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