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In the case of a convex mirror, if the object is moved away from the mirror, how does the size of image change?
- a)Size of the image increases
- b)Size of the image decreases
- c)Size of the image remains same
- d)Size of the image decreases if the image shifts from focus towards the pole
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
In the case of a convex mirror, if the object is moved away from the m...
Explanation:
When an object is moved away from a convex mirror, the size of the image formed by the mirror decreases.
Convex Mirror:
A convex mirror is a curved mirror that bulges outwards. It is also known as a diverging mirror because it diverges the parallel incident light rays. Convex mirrors have a reflective surface that curves outwards and is thinner at the center than at the edges. They are commonly used as side-view mirrors in vehicles and for security and surveillance purposes.
Effects of Moving the Object:
When an object is moved away from a convex mirror, the following effects occur:
1. Image Distance: The distance between the object and the mirror is increased. This causes the image distance to decrease.
2. Image Size: The size of the image formed by a convex mirror decreases when the object is moved away. This is because the image distance decreases while the object distance increases. According to the mirror formula (1/f = 1/v - 1/u), as the image distance (v) decreases, the magnification (m = -v/u) also decreases. The negative sign indicates that the image formed by a convex mirror is always virtual and diminished in size.
3. Image Position: The position of the image formed by a convex mirror also changes when the object is moved away. The image is always virtual, erect, and located between the focus and the pole of the mirror. As the object distance (u) increases, the image shifts closer to the pole of the mirror.
4. Field of View: Moving the object away from a convex mirror increases the field of view. The field of view is the area that can be observed through the mirror. As the object moves away, more objects and a larger area can be seen in the mirror.
Conclusion:
When an object is moved away from a convex mirror, the size of the image formed by the mirror decreases. This is due to the decrease in image distance and the diminishing effect of the convex mirror. The image is always virtual, erect, and located between the focus and the pole of the mirror.
When an object is moved away from a convex mirror, the size of the image formed by the mirror decreases.
Convex Mirror:
A convex mirror is a curved mirror that bulges outwards. It is also known as a diverging mirror because it diverges the parallel incident light rays. Convex mirrors have a reflective surface that curves outwards and is thinner at the center than at the edges. They are commonly used as side-view mirrors in vehicles and for security and surveillance purposes.
Effects of Moving the Object:
When an object is moved away from a convex mirror, the following effects occur:
1. Image Distance: The distance between the object and the mirror is increased. This causes the image distance to decrease.
2. Image Size: The size of the image formed by a convex mirror decreases when the object is moved away. This is because the image distance decreases while the object distance increases. According to the mirror formula (1/f = 1/v - 1/u), as the image distance (v) decreases, the magnification (m = -v/u) also decreases. The negative sign indicates that the image formed by a convex mirror is always virtual and diminished in size.
3. Image Position: The position of the image formed by a convex mirror also changes when the object is moved away. The image is always virtual, erect, and located between the focus and the pole of the mirror. As the object distance (u) increases, the image shifts closer to the pole of the mirror.
4. Field of View: Moving the object away from a convex mirror increases the field of view. The field of view is the area that can be observed through the mirror. As the object moves away, more objects and a larger area can be seen in the mirror.
Conclusion:
When an object is moved away from a convex mirror, the size of the image formed by the mirror decreases. This is due to the decrease in image distance and the diminishing effect of the convex mirror. The image is always virtual, erect, and located between the focus and the pole of the mirror.
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Community Answer
In the case of a convex mirror, if the object is moved away from the m...
Size of the image decreases.
As the object is moved away from a convex mirror, the distance of virtual image (formed behind the mirror) from the mirror increases (between pole and focus), the image shifts from the pole towards the focus and the size of the image gradually decreases. When the object is at infinity, the image is at its focus. The image always becomes erect and virtual.
As the object is moved away from a convex mirror, the distance of virtual image (formed behind the mirror) from the mirror increases (between pole and focus), the image shifts from the pole towards the focus and the size of the image gradually decreases. When the object is at infinity, the image is at its focus. The image always becomes erect and virtual.
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In the case of a convex mirror, if the object is moved away from the mirror, how does the size of image change?a)Size of the image increasesb)Size of the image decreasesc)Size of the image remains samed)Size of the image decreases if the image shifts from focus towards the poleCorrect answer is option 'B'. Can you explain this answer?
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