A lens of focal length 12 cm forms an up...

A lens of focal length 12 cm forms an upright image three times the size of a real object ,calculate the object and image distances.

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An object is kept in front of a concave mirror of focal length 15 cm.The image formed is three times the size of the object.Calculate two possible distances of the object from the mirror.

A lens of focal length 12 cm produces a virtual image. The size of image is 1//3 times the size of the object. What kind of lens it is ? Determine the positions of the object and the image.

A convex lens of focal length 0.12 m produces an inverted image ,which is three times as long as the object.Find the distance between the object and the lens for a real image.

A concave lens of focal length 15cm forms an image 10 cm from the lens. How far is the object placed from the lens? Draw ray diagram.

A concave mirror of focal length 15 cm forms an image having twice the linear dimenstions of the objet.The position of the object,when the image is virtual,will be

The image formed by the lens is erect and its length is three times the length of an object. If the focal length of the lens is 15 cm, what kind of lens it is ? Calculate the object and image distance.

The image obtained with a convex lens is erect and its lenth is four times the length of the object.If the focal length of the lens is 20 cm,calculate the object and image distance.

The image obtained iwth a convex lewns is ereect and its length is four times the length of the object.If the focal length of the lens is 20 cm,calculate the object and image distance.

MODERN PUBLICATION-REFRACTION OF LIGHT-EXERCISE

A convex lens is used to obtain a magnified image of an object on a sc...
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The image obtained iwth a convex lewns is ereect and its length is fou...
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A lens of focal length 12 cm forms an upright image three times the si...
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A lens of focal length 12 cm produces a virtual image,whose linear dim...
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A lens has a power of +5 D in air.If completely immersed in water,what...
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Find the ratio of the powers of a glass lens in water and in air .Give...
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A glass convex lens has a power of +10 D.When ths lens is totally imme...
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What is the focal length of a convex lens of focal length 30cm in cont...
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A concave lens is placed in contact with a convvex lens of focal lengh...
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Two thin lenses of focal lenths + 10 cm and - 5 cm are kept in contact...
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Two thin lenses of focal lenths + 10 cm and - 5 cm are kept in contact...
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Two lenses of focal length 10 cm and -20 cm are placed in contact .Wha...
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A convex lens of focal lenth 30 cm and a concave lens of focal length ...
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Two lenses of power 15.5 D and -5.5 D are placed in contact.What is te...
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Two thin lenses of pwer +5D and -3D are in contact. What is the focal ...
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A concave lens is kept in contact with a convex lens of focal length 2...
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Two lenses of power +15 D and -5 D are in contact with each other form...
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Two lenses of power +15 D and -5 D are in contact with each other form...
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A compound lens is made of a convex lens of power 10 D and a concave l...
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Two lenses of powers 10D - 5D are placed in contact Calculate the powe...
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