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The sign of the magnification produced by a concave mirror is?

Apositive when the image is virtual and negative when the image is real

Balways positive

Cpositive when the image is real and negative when the image is virtual

Dalways negative

Answer:

A. positive when the image is virtual and negative when the image is real

Read Explanation:

  • The magnification produced by a concave mirror is positive when the image is virtual and negative when the image is real.

  • The sign of magnification produced by a concave mirror directly indicates the nature of the image formed.

  • By convention, positive magnification signifies that the image is virtual and erect with respect to the object.

  • This occurs when the object is placed between the pole (P) and the principal focus (F) of the concave mirror, causing the reflected rays to diverge and appear to originate from behind the mirror.

  • Conversely, negative magnification indicates that the image is real and inverted.


Related Questions:

At which position on principal axis does a concave mirror forms a highly diminished, real and inverted image of an object?
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An object is placed in front of a concave mirror of focal length 12 cm, at a distance of 8 cm. Its image is formed at a distance of?
ഒരു കോൺകേവ് ദർപ്പണത്തിന് മുൻപിൽ വസ്തു വച്ചപ്പോൾ യഥാർത്ഥമോ മിഥ്യയോ ആയ യാതൊരു പ്രതിബിംബങ്ങളും ഉണ്ടായില്ല. എന്നാൽ എവിടെ ആയിരിക്കാം വസ്തു വെച്ചത്?
A ray of light is incident on the pole of a concave mirror. The acute angle between the incident ray and the principal axis will be called?