What is C in concave mirror?Space and Astronomy
The centre of curvature (C) is the centre of the circle (sphere) of which the mirror is an arc.
What is C and F in concave mirror?
Properties of image:
|Positions of Object and Image in Concave Mirror|
|Position of Object||Position of Image||Size of Image|
|Between C and F||Beyond C||Enlarged|
|At F||At infinity||Highly enlarged|
|Between F and P||Behind mirror||Enlarged|
What does C represent in mirror?
Centre of curvature C- it is the centre of the sphere of which the mirror is part. Radius of curvature r- it is the radius of the sphere of which the mirror is part. Principal axis- it is a line drawn through the pole of the mirror and the centre of curvature.
What is beyond C in concave mirror?
For concave mirrors, when the object is outside C, the image will be between C and F and the image will be inverted and diminished (smaller than the object). For concave mirrors, when the object is between F and C, the image will be beyond C and will be enlarged and inverted.
When the object is at C in concave mirror?
For concave mirrors, when the object is between C and F, the image will be beyond C and will be enlarged and inverted. For concave mirrors, when the object is between F and the mirror, the image will be behind the mirror and will be enlarged and upright.
When the object is placed at C of a concave mirror then the magnification is?
(a) The object must be at the centre of curvature of concave mirror. The image formed is real, inverted and of the same size as the object. That is why magnification = – 1.
When an object is placed between C and F of the concave mirror then?
When the object is located between C and F, the image is located beyond C and is inverted. So if the object is positioned above the principal axis, then the image is positioned below the principal axis.
What if the object is at C?
Object placed at C: Nature – A real, inverted image of the same is formed at the centre of curvature. Position of image – Image formed is at C. Size of image – equal to the object AB.
What if the object is between C and F?
In fact, it can be generalized that anytime the object is located between C and F, the image will be located beyond the center of curvature as well. In such cases, the image will be inverted and larger in size than the object.
When object is between C and F in convex lens?
Summary of Image Formation
|Object at Infinity||Image is formed at focus. Image is real, inverted and highly diminished in size.|
|Between C and F||Image is formed beyond C2 or 2F2. Image is real, inverted and larger than object.|
|At C||Image is formed at 2F2 or C2. Image is real, inverted and of same size as object.|
How many cases are there in convex lens?
A convex lens is also known as a “biconvex lens” because of two spherical surfaces bulging outwards.
What is the lens maker’s formula?
Lens maker’s formula is the relation between the focal length of a lens to the refractive index of its material and the radii of curvature of its two surfaces. It is used by lens manufacturers to make the lenses of particular power from the glass of a given refractive index.
What is 2F1 and 2F2 in lens?
2F1=CENTRE OF CURVATURE. RIGHT SIDE OF LENS. F2=FOCUS. 2F2=CENTRE OF CURVATURE.
Why is C called 2F lens?
The 2F point is called the centre of curvature . If we take the whole lens radius and draw a circle then the centre of the circle will be at point 2F from the pole of the lens , thus the 2F point is called the centre of curvature of the lens .
What is F1 and 2F1?
left side of lens. F1=FOCAS. 2F1=CENTRE OF CURVATURE. RIGHT SIDE OF LENS.
What is 2F2 in convex lens?
Answer: when an object is placed at 2F2 for a convex lens, then the image is formed at point where at least two reflected light rays meet.
What do F² 2F 2F² represent?
F₂ represents that the fluorine is in a molecular state. Two atoms of fluorine react together in a suitable condition to form the molecule. They are stable. 2F represents that there are two atoms of fluorine present.
When object is placed at 2F2?
Answer: When an object is placed at 2F1 the image is formed at 2F2 and the image formed is real, inverted and of same size as that of object.
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