You asked: Is magnification of a convex lens positive or negative?

Magnification is positive for virtual image and negative for real image. When |m|>1, the image is magnified. When |m|Is magnification negative or positive?

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

Is magnification of lens always positive?

(b) The magnification of concave lens and convex mirror is always positive where as the magnification of convex lens and concave mirror can be positive or negative depending on the position of the object before the lens.

What does negative magnification mean in convex lens?

When the magnification of a lens is negative it means that the image is inverted.

Which lens is it if the magnification is negative?

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.

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Is magnification negative in convex mirror?

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

What is the magnification for a convex mirror?

As the object will get closer to the mirror the image will get bigger and bigger but it will not get bigger than the original object. So, the image formed in a convex mirror is always virtual and diminished. So, the magnification of a convex mirror is always less than 1.

For which lens the magnification is always positive concave convex by concave by convex?

The concave lens and the convex mirror always produce a virtual image, therefore, their magnification is always positive whereas the convex lens and the concave mirror can produce real as well as the virtual image depending upon the object position, therefore, their magnification can be positive or negative. Answer- C.

Can you have a negative magnification?

A negative magnification indicates that the image is inverted. If the object is placed closer to a converging lens than the focal length, the rays on the far side of the lens diverge. … The focal length is positive for a converging lens and is negative for a diverging lens.

Why is magnification always positive for a concave lens while can be positive or negative for a convex lens?

(b) This is because image formed by a convex lens may be real and inverted for some positions of the object and image formed may also be virtual and erect for some other positions to the object. …

Why is V negative in magnification?

And v is only negative when the image is on the same side of the lens as the object. Therefore meaning a virtual image (According to physicsclassroom “The negative value for image distance indicates that the image is a virtual image located on the object’s side of the lens.”).

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What does a positive magnification signify?

A magnification of 1 (plus or minus) means that the image is the same size as the object. … If the magnification is positive, the image is upright compared to the object; if m is negative, the image is inverted compared to the object.

Can magnification be positive in concave mirror?

(b) The magnification of concave lens and convex mirror is always positive where as the magnification of convex lens and concave mirror can be positive or negative depending on the position of the object before the lens.

Is magnification negative for a compound microscope?

Answer: In telescope and compound microscope,the final image formed is inverted. Hence, the magnification is taken as negative.

Do convex lenses have negative focal length?

For focal length, f in lens is always taken as negative for concave and positive for convex. In case of mirror the f is taken as negative if it is in -X side i.e., is in Concave mirror and taken as positive if it is in +X side i.e., is in Convex mirror.