Understanding Mirrors and Image Formation

The video explores the characteristics of images formed by plane and concave mirrors. Plane mirrors create virtual images of the same size and distance as the object, with left-right reversal. Concave mirrors, however, can form both real and virtual images depending on the object's position. When the object is between the focal point and the pole, the image is virtual and enlarged. As the object moves away, the image becomes real, inverted, and its size varies. At infinity, the image is point-sized and real. The video concludes with a promise to explore ray diagrams in the next session.

What is a unique characteristic of images formed by plane mirrors?

• They are always smaller than the object.

• They are always larger than the object.

• They are virtual and the same size as the object.

• They are real and inverted.

What is the nature of the image formed by a concave mirror when the object is between the focal point and the pole?

• Real and inverted

• Virtual and enlarged

• Real and diminished

• Virtual and diminished

Which of the following is true about the image formed by a concave mirror when the object is between the focal point and the pole?

• The image is virtual and inverted.

• The image is real and upright.

• The image is virtual and upright.

• The image is real and inverted.

When an object is at the principal focus of a concave mirror, what is the nature of the image formed?

• Virtual and upright

• Real and inverted

• Virtual and inverted

• Real and upright

What happens to the size of the image as the object moves from the focal point towards the center of curvature in a concave mirror?

• The image size increases.

• The image size remains the same.

• The image size decreases.

• The image becomes virtual.

When the object is at the center of curvature of a concave mirror, how does the image compare to the object?

• The image is larger than the object.

• The image is smaller than the object.

• The image is the same size as the object.

• The image is virtual.

What is the nature of the image when the object is beyond the center of curvature in a concave mirror?

• Real and diminished

• Real and enlarged

• Virtual and diminished

• Virtual and enlarged

Where is the image formed when an object is placed at infinity in front of a concave mirror?

• Behind the mirror

• At the principal focus

• At the center of curvature

• At the pole of the mirror

What is the nature of the image formed when an object is placed at infinity in front of a concave mirror?

• Real and point-sized

• Virtual and point-sized

• Real and enlarged

• Virtual and enlarged

What happens to the image size as the object moves beyond the center of curvature in a concave mirror?

• The image size decreases.

• The image size increases.

• The image becomes virtual.

• The image size remains the same.