Magnification less than one means that the image height is less than the object height. This is always true for a concave lens.

Magnification: The ratio of the height of the image to the height of the object is called the magnification of the spherical mirror. The magnification of the actual image will always be negative and the virtual image should always be positive.

The question is a very common one. Magnification is the ratio between the height of the object and the height of the image. In the case of a real image, the height of the object carries a positive sign while the height of the image carries a negative one. Hence the magnification is negative.

The sign of the magnification tells us the orientation of the image. If the sign is positive, then the image is upright. If the sign is negative, then the image is upside-down. In the examples above, we can see that amount by which an object will be magnified changes depending on its distance from the focal point.

A convex lens can form virtual as well as real images, so the magnification produced by a convex lens can be either positive or negative. Magnification is positive for virtual image and negative for real image.

Magnification is negative in a concave mirror. The magnification of a concave mirror is given by the ratio of the height of the image to the height of the object. Hence, if the image is inverted and real the magnification will be negative. Was this answer helpful?

Magnification of a lens or a mirror shows how magnified the image of an object is. if v is the image distance and u is the object distance. So, It can be also defined as the ratio of the height of the image to the height of the object.

Magnification of a convex mirror is always positive, but that of a concave mirror may be both positive or negative.

a. the size of the images is half the size of the object. the distance of the object from the lens is equal to two times the images distance from the lens. …

The sign of magnification indicates nature of image, i.e., Negative sign indicates image to be inverted and real. Positive sign indicates image to be erect and virtual.

The positive sign of magnification tells that the image formed is erect when the object is erect and is inverted when the object is inverted.

The images that are formed when the light rays appear to meet at a definite point after the reflection from the mirror is known as a virtual image. An erect image is the one that appears right-side-up. In this image, the directions are the same as those in the object.

Answer: Real images (images on the same side of the object) are always inverted. Explanation: Virtual images (images on opposite side of an object) are always erect/ upright.

In common use, when we use the word “virtual”, we tend to mean online, that is through a computer or device. We use it to define an interaction that does not take place in an in-person physical environment.

being such in essence or effect

audio-visual means

Virtual Meetings = Unified Communication Unified communication, or virtual meetings, allow people to see and hear each other in real-time. While these meetings may be recorded, they are not (usually) being recorded and broadcast at the same time, and thus are not live streams.

A virtual account number is a system generated unique account number which is based on logic and masks the original account number. These virtual account numbers cannot be traced to Core Banking System and remittances to these accounts can be made only through NEFT & RTGS modes as directed by the merchant.