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An object is placed 20 CM before a mirror the images form 5 cm behind the mirror 1 what type of mirror it is 2 what will be the nature of the image, 3 find the focal length of the mirror?
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An object is placed 20 CM before a mirror the images form 5 cm behind ...
1. Type of Mirror:
The mirror in this scenario is a concave mirror. This can be inferred from the fact that the image is formed on the same side as the object, which is a characteristic of concave mirrors.
2. Nature of the Image:
The nature of the image formed by a concave mirror depends on the position of the object relative to the focal point. In this case, since the image is formed behind the mirror and is real, it is a real and inverted image. The negative sign indicates that the image is formed on the same side as the object.
3. Focal Length of the Mirror:
To find the focal length of the concave mirror, we can use the mirror formula:
1/f = 1/v + 1/u
where f is the focal length, v is the image distance, and u is the object distance.
Given:
Object distance, u = -20 cm (since the object is placed before the mirror)
Image distance, v = -5 cm (since the image is formed behind the mirror)
Substitute the values into the formula:
1/f = 1/(-5) + 1/(-20)
1/f = -0.2 + (-0.05)
1/f = -0.25
Therefore, the focal length of the concave mirror is -4 cm. The negative sign indicates that the focal length is on the same side as the object.
The mirror in this scenario is a concave mirror. This can be inferred from the fact that the image is formed on the same side as the object, which is a characteristic of concave mirrors.
2. Nature of the Image:
The nature of the image formed by a concave mirror depends on the position of the object relative to the focal point. In this case, since the image is formed behind the mirror and is real, it is a real and inverted image. The negative sign indicates that the image is formed on the same side as the object.
3. Focal Length of the Mirror:
To find the focal length of the concave mirror, we can use the mirror formula:
1/f = 1/v + 1/u
where f is the focal length, v is the image distance, and u is the object distance.
Given:
Object distance, u = -20 cm (since the object is placed before the mirror)
Image distance, v = -5 cm (since the image is formed behind the mirror)
Substitute the values into the formula:
1/f = 1/(-5) + 1/(-20)
1/f = -0.2 + (-0.05)
1/f = -0.25
Therefore, the focal length of the concave mirror is -4 cm. The negative sign indicates that the focal length is on the same side as the object.
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An object is placed 20 CM before a mirror the images form 5 cm behind the mirror 1 what type of mirror it is 2 what will be the nature of the image, 3 find the focal length of the mirror?
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An object is placed 20 CM before a mirror the images form 5 cm behind the mirror 1 what type of mirror it is 2 what will be the nature of the image, 3 find the focal length of the mirror? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about An object is placed 20 CM before a mirror the images form 5 cm behind the mirror 1 what type of mirror it is 2 what will be the nature of the image, 3 find the focal length of the mirror? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An object is placed 20 CM before a mirror the images form 5 cm behind the mirror 1 what type of mirror it is 2 what will be the nature of the image, 3 find the focal length of the mirror?.
An object is placed 20 CM before a mirror the images form 5 cm behind the mirror 1 what type of mirror it is 2 what will be the nature of the image, 3 find the focal length of the mirror? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about An object is placed 20 CM before a mirror the images form 5 cm behind the mirror 1 what type of mirror it is 2 what will be the nature of the image, 3 find the focal length of the mirror? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An object is placed 20 CM before a mirror the images form 5 cm behind the mirror 1 what type of mirror it is 2 what will be the nature of the image, 3 find the focal length of the mirror?.
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