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WHAT IS THE IMAGE DISTANCE OF AN OBJECT PLACED CM FROM A CONVERGING LEN OF FOCAL LENGTH CM?
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A converging mirror has a focal length of 20cm Where should an object be placed so that its virtual image will be twice as tall as the object?
10cm
An object is placed in front of a converging lens in such a position that the lens f 14.0 cm creates a real image located 27.0 cm from the lens Then with the object remaining in place the lens?
if ur asking what is the position of the object, you can use this formulas 1/f = 1/di + 1/do f: Focul length (14 cm) di: Image Distance (27 cm) do: Object distance (?) Object Distance ( do) = 4.69 cm
Choose the correct answer An erect object placed outside the focal poit of a converging lens will produce an image that is?
Inverted
When does a Convex lens form a virtual or real image?
When object is within the focal distance then virtual image is formed. But when the object is placed beyond the focus of the covex lens ie if the distance of the object is more than focal length then real image is formed.
When does a convex lens forms a real or virtual image?
When object is within the focal distance then virtual image is formed. But when the object is placed beyond the focus of the covex lens ie if the distance of the object is more than focal length then real image is formed.
How can you locate the focus of a coverging lens?
The focus of a converging lens can be found located by moving the object(source) from a large distance and getting it closer to the lens.As we go closer the size of the image which is obtained on a screen placed behind the mirror increases.At a certain point the size of the image and that of the object are equal.This point is known as the center of curvature.The focus is the midpoint of the center of curvature and the optical point.In other words the focal length is Radius of curvature/2
What are the characteristics of a concave mirror?
A concave mirror is a converging mirror used in microscopes and telescopes. Characteristics include forming real and inverted and diminished images when an object is placed beyond the center of curvature or real, inverted and enlarged image when the object is placed between the center of curvature and focus.
What is the relationship of the size of object and image to the distance of the object and image?
image distance is the distance from the point of incidence on the mirror, the where the image is reflected to.object distance is the distance from the actual object being reflected to the point of incidence on the mirror where it's reflected as an image.
What image is formed by a convex mirror?
The image is always virtual,smaller,and erect at any distance in which the object is placed.
Does the size of the bath which an object is placed affect the amount of water which overflows?
No. It will affect the distance the water rises, but not the volume of displacement.
What is the different between concave and convex mirror light?
Concave mirror would have the surface curved out get coated with mercury hence curved in surface would reflect the rays fallen on. But convex mirror would have the surface curved in get coated with mercury hence curved out surface would reflect the rays fallen on. Concave mirror would have both converging and diverging ability. When light coming from an object placed at a distance higher than its focal length right from the pole of the mirror, converging takes place. But the object lies in between pole and the focus diverging action. But in convex mirror irrespective of the placement of the object only diverging phenomenon. Concave mirror used as shaving mirror and dentists too use them Convex mirror is used as rear view mirror in case of vehicles near by the driver.
A convex lens forms a real and inverted image of a needle at a distance of 50cm from the lensWhere is the needle placed in front of the convex lens so that the image is of the same size as the object?
A convex lens forms a real and inverted image of equal size only when it is kept at the center of curvature of the lens. The image is also formed at the center of curvature at the other side. Hence, the distance of object = distance of image = 50 cm. Now, focal length = � � radius of curvature = � � 50 cm = 25 cm Hope it is clear!
