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How far must an object be from a concave mirror if the image formed is to be inverted?

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How far must an object be from a concave mirror if the image formed is to be inverted?

one focal length
Only a concave mirror can be used to produce an inverted image; and this only occurs if the object is located at a position of more than one focal length from the concave mirror.

How do you find the distance of an object in a concave mirror?

  1. The mirror formula is 1f=1v+1u.
  2. The magnification m is given by m=−vu.
  3. According to sign conventions, for a concave mirror, the focal length (f) is negative, the object distance (u) is negative, the image distance (v) is positive for a virtual image and negative for a real image.
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How far an object has to be placed from a concave mirror to get 2 times magnified image?

so if you object be placed at the distance of 30 cm then the two times magnified image will be obtain.

At what distance in front of a concave mirror must an object be placed so that the image and object are of same size?

Therefore, the correct option C i.e. the object should be placed at the center of curvature of the concave mirror so that image is the same size as the object.

Is object distance negative in concave mirror?

Since as object is always placed to the left side of a mirror, therefore, the object distance (u) is always negative. The images formed by a concave mirror can be either behind the mirror (virtual) or in front of the mirror (real).

How do you find the distance of an object in a convex mirror?

The distance between the Principal focus and pole of the mirror is called Focal Length(f)….

  1. u is the Object distance.
  2. v is the Image distance.
  3. f is the Focal Length given by f=R2. f = R 2.
  4. R is the radius of curvature of the spherical mirror.
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How do you find the distance between an object and a mirror?

For plane mirrors, the object distance (is equal to the image distance. That is the image is the same distance behind the mirror as the object is in front of the mirror. If you stand a distance of 2 meters from a plane mirror, you must look at a location 2 meters behind the mirror in order to view your image.

How do you find the radius of a mirror?

R=CF+FP. In other words, in the small-angle approximation, the focal length f of a concave spherical mirror is half of its radius of curvature, R: f=R2.

Where should an object be placed before a concave mirror?

▶▶So, the object must be placed between Centre of Curvature and Focus at the distance of 30 cm from the mirror.

Where should an object be placed in front of a concave mirror?

The object should be placed within the focus (between the pole and the focus) and in front of the concave mirror in order to obtain a virtual, erect and magnified image.

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What is the distance in front of a concave mirror?

Thus the object should be placed at a distance 8 cm in front of the mirror.

At what distance from a concave mirror of focal length 10cm must an object be placed in order that an image double its size may be obtained?

Thus the object should be placed at a distance 12 cm in front of the mirror.