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?
A24 cm
B4.8 cm
C3.8 cm
D12 cm
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ഒരു കോൺകേവ് ദർപ്പണത്തിന് മുൻപിൽ വസ്തു വച്ചപ്പോൾ യഥാർത്ഥമോ മിഥ്യയോ ആയ യാതൊരു പ്രതിബിംബങ്ങളും ഉണ്ടായില്ല. എന്നാൽ എവിടെ ആയിരിക്കാം വസ്തു വെച്ചത്?
In which of the following cases does a concave mirror form a real image?
- (i) Object placed between focus and pole
- (ii) Object placed at infinity
- (iii) Object placed at focus
An object placed 30 cm from a concave lens forms a virtual erect image at a distance of 10 cm from the lens. The magnification produced by the lens is?
What should be the position of an object in front of a concave mirror to get a real image having the same size as that of the object ?
A convex lens having power 5 D is placed in contact with a concave lens having power-3 D. The focal length of the combination will be?