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What type of image is formed by a concave lens?
- a)Real and inverted
- b)Virtual and erect
- c)Real and erect
- d)Virtual and inverted
Correct answer is option 'B'. Can you explain this answer?
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What type of image is formed by a concave lens?a)Real and invertedb)Vi...
A concave lens forms a virtual and erect image. The light rays diverge when they pass through the lens, making the image appear to be on the same side as the object and upright.
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What type of image is formed by a concave lens?a)Real and invertedb)Vi...
Understanding Image Formation by Concave Lenses
Concave lenses are unique optical devices that play a crucial role in image formation. Their characteristics lead to specific types of images, which can be explained as follows:
Characteristics of Concave Lenses
- Diverging Lens: Concave lenses are known as diverging lenses because they spread out light rays that pass through them.
- Focal Point: They have a virtual focal point, which is located on the same side as the object being viewed.
Type of Image Formed
- Virtual Image: When an object is placed in front of a concave lens, the light rays diverge after passing through the lens. These rays appear to come from a point behind the lens, which is why the image formed is virtual.
- Erect Image: The virtual image created by a concave lens is also erect, meaning it has the same orientation as the object.
Summarizing the Key Points
- Real and Inverted: This is not applicable for concave lenses, as they do not form real images.
- Virtual and Erect: This is the correct answer. The image is virtual and appears upright.
- Real and Erect: Concave lenses do not produce real images, thus this option is incorrect.
- Virtual and Inverted: Again, this is incorrect since the virtual image produced by a concave lens is always erect.
Conclusion
In conclusion, when light passes through a concave lens, it creates a virtual and erect image. This property makes concave lenses useful in various applications, such as in glasses for correcting nearsightedness. Understanding these characteristics helps in grasping the fundamentals of optics.
Concave lenses are unique optical devices that play a crucial role in image formation. Their characteristics lead to specific types of images, which can be explained as follows:
Characteristics of Concave Lenses
- Diverging Lens: Concave lenses are known as diverging lenses because they spread out light rays that pass through them.
- Focal Point: They have a virtual focal point, which is located on the same side as the object being viewed.
Type of Image Formed
- Virtual Image: When an object is placed in front of a concave lens, the light rays diverge after passing through the lens. These rays appear to come from a point behind the lens, which is why the image formed is virtual.
- Erect Image: The virtual image created by a concave lens is also erect, meaning it has the same orientation as the object.
Summarizing the Key Points
- Real and Inverted: This is not applicable for concave lenses, as they do not form real images.
- Virtual and Erect: This is the correct answer. The image is virtual and appears upright.
- Real and Erect: Concave lenses do not produce real images, thus this option is incorrect.
- Virtual and Inverted: Again, this is incorrect since the virtual image produced by a concave lens is always erect.
Conclusion
In conclusion, when light passes through a concave lens, it creates a virtual and erect image. This property makes concave lenses useful in various applications, such as in glasses for correcting nearsightedness. Understanding these characteristics helps in grasping the fundamentals of optics.
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What type of image is formed by a concave lens?a)Real and invertedb)Virtual and erectc)Real and erectd)Virtual and invertedCorrect answer is option 'B'. Can you explain this answer?
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What type of image is formed by a concave lens?a)Real and invertedb)Virtual and erectc)Real and erectd)Virtual and invertedCorrect answer is option 'B'. Can you explain this answer? for Class 7 2024 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about What type of image is formed by a concave lens?a)Real and invertedb)Virtual and erectc)Real and erectd)Virtual and invertedCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What type of image is formed by a concave lens?a)Real and invertedb)Virtual and erectc)Real and erectd)Virtual and invertedCorrect answer is option 'B'. Can you explain this answer?.
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