When the object is placed at the focus of concave lens the image formed is i real and smaller II virtual and inverted III virtual and smaller IV Real and erect?

When the object is placed at the focus of concave lens the image formed is i real and smaller II virtual and inverted III virtual and smaller IV Real and erect?

Hence when an object is places between focus and the pole of a concave mirror,then image formed is virtual,erect and magnified image . Correct option is : virtual, erect and enlarged.

What will be the image if an object is placed at the focus of a concave mirror?

Keeping the laws of reflection in a concave mirror in mind, we will now draw the ray diagram for a concave mirror when the object is at focus. As we can see, the image will be formed at infinity. Since, the image is formed at infinity, it will be highly magnified.

What happens when an object is placed at focus in a convex lens?

An infinitely large, real and inverted image is formed at infinity when object is placed at principal focus, F1 of a convex lens. Properties of Image: Image is highly enlarged, real and inverted.

When the object is placed at the focus of a concave lens the image formed is virtual and smaller?

In the case of a concave lens, the produced image is always – virtual, diminished and erect, for any position of the object. So, the position of the object doesn’t matter in the case of the image formed by a concave lens. The nature of the produced image matches with the option c (virtual and smaller).

When object is at focus the image is formed at?

infinity
If an object is placed at the focus of a concave mirror, the image is formed at infinity.

When the object is placed at focus of convex image is formed?

When The Object is Placed Between Infinity and Pole One parallel to the principal axis and the other directed towards the centre of curvature of the mirror. These rays after reflection form an image between the pole (P) and the focus (F) behind the mirror. The image thus formed is diminished, virtual and erect.

What happens when an object is placed at the focus?

When the object is located at the focal point, no image is formed. As discussed earlier in Lesson 5, the refracted rays neither converge nor diverge. After refracting, the light rays are traveling parallel to each other and cannot produce an image.

What happens when an object is placed at the focus of a convex lens?

The image is formed at infinity (at very large distance).

Where will the image be formed if the object is at the focus of the concave mirror a infinity B at C C beyond C D between C and F?

(i) Based on the position of an object, we can say the nature of the image. In concave mirror images formed when the object is at infinity, beyond the center of curvature, at the center of curvature, between the focus and the center of curvature, at the focus, between the pole and focus.

When the object is placed at the focus of concave lens the image formed is real and smaller?

When the object is placed at the focus of a convex lens?

When an object is placed between the optical center and focus of the convex lens: A) The inverted, real, and the enlarged image is formed.

When an object is placed at the focus where is position of the image formed?

EXPLANATION: The image is formed between Focus and the Centre of Curvature when an object is placed beyond the centre of curvature of a concave mirror. So option 4 is correct.

What is the difference between image formation by concave and convex lenses?

The size of the image is much smaller than that of the object. When an object is placed at a finite distance from the lens, a virtual image is formed between the pole and the focus of the convex lens. The size of the image is larger than that of the object. Summary of Image Formation by Concave and Convex Lens

How is an image formed from an object at focus?

An object AB is placed at focus F. To form the image we take a rayAD parallel to the axis, which ,after refraction emerges as the ray DQ on the other side such that when DQ is produced backward , it passes through F. An another ray from A passes through the optical center O of the lens and proceeds further as the ray OQ’.

What happens when a ray falls on a concave lens?

Guidelines for rays falling on the concave and convex lenses When a ray strikes concave or convex lenses obliquely at its pole, it continues to follow its path. When a ray, parallel to the principal axis strikes concave or convex lenses, the reflected ray passes through a focus on the principal axis.

What happens when an object is 2F away from the lens?

As the object moves closer to the lens, the focal point moves away from the lens. When the object is 2f away, the image is also 2f away and you have unity magnification. Finally, when the object is f away (in the front focal plane of the lens), the focus, or image is at infinity.