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Algebra

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A polynomial of degree zero is a constant term

The grouping method of factoring can still be used when only some of the terms share a common factor A True B False

The sum or difference of p and q is the of the x-term in the trinomial

A number a power of a variable or a product of the two is a monomial while a polynomial is the of monomials

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Q: How do you find radius of curvature if image distance is given?
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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!


An object 2.5 cm long is placed on the axis of a concave mirror on 30 cm radius of curvature at a distance of 10 cm away from it Find the position size and nature of the image formed?

If an object at is 2.5 cm long is placed on the axis of a concave mirror that is 30 cm radius of curvature at a distance of 10 cm away from it, the position size and nature of the image formed would be 20 cm. This is a math problem.


Why is the focal length of a plane mirror infinity?

In a plane mirror, the radius of curvature is infinitly long, so the focus will be at infinity. Another way to say it is that a plane mirror has no curvature, and as curvature becomes increasingly small, focal length becomes increasingly long. At a curvature of zero, focal length becomes infinite. Focal length(f) is given by f=R/2 where R is radius of curvature.. Once again, it's infinity! See answer to your question on radius of curvature. Plug infinity (radius of curvature) into your mirror equation to get the focal length, which will also be infinite. A flat mirror does not focus incoming parallel beams. That's because if you say its at infinity it means it does exist in a finite distance, that is instead of saying it does exist its taken at infinite distance for only theoretical importance and not for practical observance. Focal length is half of radius of curvature of the mirror. So bigger the circle gets the more its radius will be. So in the same way as the curvature of the sphere gets less and less its focal length increases, so when it becomes totally flat the focal length will become infinite so it means it has no existence but it has only theoretical importance. It same as taking the formation of image of an object at principal focus to be at infinite distance rather than saying it does not form ( that is both mean the same). hope my answer is satisfactory


What factor most influences the image produced by reflection of an object in a concave?

Distance from the mirror, curvature of the mirror.


What factor influences the image produced by reflection of an object in a concave mirror?

Distance from the mirror, curvature of the mirror.


What factor most influences the image produced by reflection of an object in a concave mirror?

Distance from the mirror, curvature of the mirror.


Light from a star is collected by a concave mirror How far from the mirror is the image of the star if the radius of curvature is 150 cm?

The image of the star will be 67.5 cm from the mirror because focal length is the raidus of curvature multiplied by 2 or (2)(C). So, therefore, 150 / 2 will give the focal length which would also be the answer.


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


Where will the image form when you place an object on the principal axis of a concave mirror at a point between focus and centre of curvature?

If the object is placed on the principal axis of a concave mirror at a point between the focus and centre of curvature the image will form beyond the centre of curvature


What type of mirror could be used to A real image as big as real object?

Concave mirror is used to a real image as big as real object. If the object is placed at center of curvature , then real image is formed at the same center of curvature.


Where does a simple positive lens form an image of a very distant object?

The image is formed behind the lens at a distance equal to the focal length. If the distance to the object is D1 and the focal length is F, then the distance D2 to the image is given by this equation: 1/D2 = 1/F - 1/D1


What is the difference between image distance and object distance?

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.

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