Table of Contents
- 1 What happens to the image as the object is move closer to the concave lens?
- 2 What happens to the image size if an object move towards the concave mirror from infinity to its focus?
- 3 What happens to image distance as object distance increases?
- 4 How does the size of the image change as the object is brought closer towards the convex mirror?
- 5 What happens to the image distance in the eye when increase the distance of an object from the eye?
- 6 Does the image distance in the eye vary as we increase or decrease the distance of an object from the eye?
- 7 What is the reflection of a convex mirror?
- 8 What happens when a ray passes through a concave mirror?
What happens to the image as the object is move closer to the concave lens?
In a concave lens, when the object is positioned at infinity, the image is made at the lens’s focus, and if the object travels closer to the concave lens, the image is also transferred from its focus toward the lens size rise.
What happens to the image size if an object move towards the concave mirror from infinity to its focus?
As the object moves towards the mirror inside the focal point the image becomes virtual and upright behind the mirror. Initially the virtual image is much larger than the object and really far away, but as the object approaches the mirror the virtual image also approaches the mirror and decreases in size.
How will the magnitude of magnification change if an object placed at center of curvature is moved towards focus in concave mirror?
It becomes equal to infinity.
How will the magnitude of magnification changes is an object placed at Centre of curvature is moved towards focus?
Right Answer is: B As the object moves towards focus, the height of the image increases as shown in these ray diagrams. We know that magnification (m) = height of imageheight of object. As the height of the image increases, the numerator increases, which in turn leads to the increase in the magnitude of magnification.
What happens to image distance as object distance increases?
The image distance in the eye is the distance between the eye lens and the retina. This distance is fixed. Hence, the image distance in the eye does not change when the distance of an object from the eye is increased.
How does the size of the image change as the object is brought closer towards the convex mirror?
As the object is brought closer from infinity towards the convex lens, the size of image increases. When the object is at infinity, point-sized image is formed, while object at focus gives highly enlarged image.
How will the magnitude of magnification change if an object?
As the height of the image increases, the magnitude of magnification increases.
What is the magnification of the image formed when the object is placed at the centre of curvature in front of concave mirror?
The size image forms is equal to that of the object when the object is placed at Centre of Curvature before a concave mirror. As image is real & inverted, the value of magnification would be negative. So, magnification is -1 in this case.
What happens to the image distance in the eye when increase the distance of an object from the eye?
When the distance of an object from the eye increases, the focal length of the eye lens is increased so as to get the image on the retina. (due to power of accommodation of the eye lens). In this case the eye lens gets thinner. Still the image distance remains the same.
Does the image distance in the eye vary as we increase or decrease the distance of an object from the eye?
Hint – To see closer or distant objects clearly, the eyes, due to its ability of accommodation, can increase or decrease the focal length of its lens, so that image is always formed at the retina. So, there is no change to the image distance in the eye even if we increase the distance of an object.
Does a concave mirror magnify the image?
The size of the image is the same as the object (the mirror does not magnify the image). Reflection from a Concave Mirror When the object is far from the mirror, the image is inverted and at the focal point. The image is real light rays actually focus at the image location).
What happens to the image as the object moves towards the mirror?
As the object moves towards the mirror the image location moves further away from the mirror and the image size grows (but the image is still inverted). When the object is that the focal point, the image is at infinity. As the object moves towards the mirror inside the focal point the image becomes virtual…
What is the reflection of a convex mirror?
Reflection from Convex Mirror The image produced by a convex mirror is always virtual, and located behind the mirror. When the object is far away from the mirror the image is upright and located at the focal point. As the object approaches the mirror the image also approaches the mirror and grows until its height equals that of the object.
What happens when a ray passes through a concave mirror?
A ray passing through the center of curvature of the spherical mirror will retrace its path after reflection. By changing the position of the object from the concave mirror, different types of images can be formed. Different types of images are formed when the object is placed: