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A student obtained a sharp image of a candle flame placed at the distant end of the laboratory table on a screen using a concave mirror to determine its focal length. The teacher suggested him to focus a distant building about 1 km far from the laboratory, for getting more correct value of the focal length. In order to focus the distant building on the same screen the student should slightly move the:
- a)mirror away from the screen
- b)screen away from the mirror
- c)screen towards the mirror
- d)screen towards the building
Correct answer is option 'C'. Can you explain this answer?
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A student obtained a sharp image of a candle flame placed at the dista...
The object is at infinity , so to obtain sharp image screen should be moved towards mirror.
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A student obtained a sharp image of a candle flame placed at the dista...
To understand why the student needs to move the screen towards the mirror in order to focus the distant building on the same screen, we need to consider the properties of concave mirrors and how they form images.
1. Concave Mirror:
- A concave mirror is a curved mirror that curves inward.
- It has a reflective surface on the inner side, and the outer side is transparent.
- Concave mirrors are converging mirrors, meaning they bring parallel rays of light together at a specific point called the focus.
2. Focal Length:
- The focal length of a concave mirror is the distance between the mirror and its focus.
- It determines the amount of curvature of the mirror.
3. Image Formation:
- When an object is placed in front of a concave mirror, it forms an image.
- The properties of the image depend on the position of the object relative to the focal point.
4. Candle Flame Image:
- In the given scenario, the student obtained a sharp image of the candle flame placed at the distant end of the laboratory table on a screen.
- This means the screen was placed at the position where the image of the candle flame was formed.
- The distance between the screen and the concave mirror is equal to the focal length of the mirror.
5. Focusing a Distant Building:
- To determine the more correct value of the focal length, the teacher suggested the student focus a distant building about 1 km away from the laboratory.
- When focusing a distant object, the rays of light coming from that object can be considered as parallel rays.
- Parallel rays of light incident on a concave mirror appear to come from the focus after reflection.
6. Moving the Screen:
- When the student focuses the distant building on the same screen, they need to adjust the position of the screen relative to the mirror.
- Since the rays of light from the distant building are parallel, they will converge to a point at the focus of the concave mirror.
- In order to bring this point of convergence onto the screen, the screen needs to be moved towards the mirror.
- This adjustment allows the image of the distant building to be formed on the screen.
Therefore, to focus the distant building on the same screen, the student should slightly move the screen towards the mirror (option C).
1. Concave Mirror:
- A concave mirror is a curved mirror that curves inward.
- It has a reflective surface on the inner side, and the outer side is transparent.
- Concave mirrors are converging mirrors, meaning they bring parallel rays of light together at a specific point called the focus.
2. Focal Length:
- The focal length of a concave mirror is the distance between the mirror and its focus.
- It determines the amount of curvature of the mirror.
3. Image Formation:
- When an object is placed in front of a concave mirror, it forms an image.
- The properties of the image depend on the position of the object relative to the focal point.
4. Candle Flame Image:
- In the given scenario, the student obtained a sharp image of the candle flame placed at the distant end of the laboratory table on a screen.
- This means the screen was placed at the position where the image of the candle flame was formed.
- The distance between the screen and the concave mirror is equal to the focal length of the mirror.
5. Focusing a Distant Building:
- To determine the more correct value of the focal length, the teacher suggested the student focus a distant building about 1 km away from the laboratory.
- When focusing a distant object, the rays of light coming from that object can be considered as parallel rays.
- Parallel rays of light incident on a concave mirror appear to come from the focus after reflection.
6. Moving the Screen:
- When the student focuses the distant building on the same screen, they need to adjust the position of the screen relative to the mirror.
- Since the rays of light from the distant building are parallel, they will converge to a point at the focus of the concave mirror.
- In order to bring this point of convergence onto the screen, the screen needs to be moved towards the mirror.
- This adjustment allows the image of the distant building to be formed on the screen.
Therefore, to focus the distant building on the same screen, the student should slightly move the screen towards the mirror (option C).
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A student obtained a sharp image of a candle flame placed at the distant end of the laboratory table on a screen using a concave mirror to determine its focal length. The teacher suggested him to focus a distant building about 1 km far from the laboratory, for getting more correct value of the focal length. In order to focus the distant building on the same screen the student should slightly move the:a)mirror away from the screenb)screen away from the mirrorc)screen towards the mirrord)screen towards the buildingCorrect answer is option 'C'. Can you explain this answer?
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A student obtained a sharp image of a candle flame placed at the distant end of the laboratory table on a screen using a concave mirror to determine its focal length. The teacher suggested him to focus a distant building about 1 km far from the laboratory, for getting more correct value of the focal length. In order to focus the distant building on the same screen the student should slightly move the:a)mirror away from the screenb)screen away from the mirrorc)screen towards the mirrord)screen towards the buildingCorrect answer is option 'C'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about A student obtained a sharp image of a candle flame placed at the distant end of the laboratory table on a screen using a concave mirror to determine its focal length. The teacher suggested him to focus a distant building about 1 km far from the laboratory, for getting more correct value of the focal length. In order to focus the distant building on the same screen the student should slightly move the:a)mirror away from the screenb)screen away from the mirrorc)screen towards the mirrord)screen towards the buildingCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A student obtained a sharp image of a candle flame placed at the distant end of the laboratory table on a screen using a concave mirror to determine its focal length. The teacher suggested him to focus a distant building about 1 km far from the laboratory, for getting more correct value of the focal length. In order to focus the distant building on the same screen the student should slightly move the:a)mirror away from the screenb)screen away from the mirrorc)screen towards the mirrord)screen towards the buildingCorrect answer is option 'C'. Can you explain this answer?.
A student obtained a sharp image of a candle flame placed at the distant end of the laboratory table on a screen using a concave mirror to determine its focal length. The teacher suggested him to focus a distant building about 1 km far from the laboratory, for getting more correct value of the focal length. In order to focus the distant building on the same screen the student should slightly move the:a)mirror away from the screenb)screen away from the mirrorc)screen towards the mirrord)screen towards the buildingCorrect answer is option 'C'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about A student obtained a sharp image of a candle flame placed at the distant end of the laboratory table on a screen using a concave mirror to determine its focal length. The teacher suggested him to focus a distant building about 1 km far from the laboratory, for getting more correct value of the focal length. In order to focus the distant building on the same screen the student should slightly move the:a)mirror away from the screenb)screen away from the mirrorc)screen towards the mirrord)screen towards the buildingCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A student obtained a sharp image of a candle flame placed at the distant end of the laboratory table on a screen using a concave mirror to determine its focal length. The teacher suggested him to focus a distant building about 1 km far from the laboratory, for getting more correct value of the focal length. In order to focus the distant building on the same screen the student should slightly move the:a)mirror away from the screenb)screen away from the mirrorc)screen towards the mirrord)screen towards the buildingCorrect answer is option 'C'. Can you explain this answer?.
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A student obtained a sharp image of a candle flame placed at the distant end of the laboratory table on a screen using a concave mirror to determine its focal length. The teacher suggested him to focus a distant building about 1 km far from the laboratory, for getting more correct value of the focal length. In order to focus the distant building on the same screen the student should slightly move the:a)mirror away from the screenb)screen away from the mirrorc)screen towards the mirrord)screen towards the buildingCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for A student obtained a sharp image of a candle flame placed at the distant end of the laboratory table on a screen using a concave mirror to determine its focal length. The teacher suggested him to focus a distant building about 1 km far from the laboratory, for getting more correct value of the focal length. In order to focus the distant building on the same screen the student should slightly move the:a)mirror away from the screenb)screen away from the mirrorc)screen towards the mirrord)screen towards the buildingCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of A student obtained a sharp image of a candle flame placed at the distant end of the laboratory table on a screen using a concave mirror to determine its focal length. The teacher suggested him to focus a distant building about 1 km far from the laboratory, for getting more correct value of the focal length. In order to focus the distant building on the same screen the student should slightly move the:a)mirror away from the screenb)screen away from the mirrorc)screen towards the mirrord)screen towards the buildingCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
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