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CBSE Class 10 Answered

CAN U PLEASE GIVE A GOOD, 1 MARK DEFINITION FOR THE CENTRE OF CURVATURE AND THE DIFFERENCE BETWEEN CENTRE OF CURVATURE AND POLE.
Asked by godson babuji | 10 Nov, 2014, 01:24: AM
answered-by-expert Expert Answer

Center of curvature of a spherical mirror is the centre of the hollow sphere of glass of which the mirror is a part. The centre of curvature of a mirror is represented by C.

On the other hand Pole is the centre of a spherical mirror. i.e the middle point of a spherical mirror is called its pole. Pole of a spherical mirror lies on the surface of the mirror and is represented by P.The figure below will help you to understand the difference between them more clearly.

Answered by Jyothi Nair | 10 Nov, 2014, 09:47: AM

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CBSE 10 - Physics
CASE STUDY : Light is a form of energy which induced sensation of vision to our eyes. It becomes visible when it bounces off on surface and hits our eyes. Regular reflection takes place through a smooth polished surface. The mirror outside the driver side of the vehicle is usually a spherical mirror and printed on such mirror is usually the warning "Vehicles in this mirror are closer than they appear". (i) What is the reason for this warning written on the mirror ? (ii) Draw a ray diagram showing the image formation in such kind of mirror. (iii) State two positions in which a concave mirror produces a magnified image of a given object. (iv) How is linear magnification it related to object distance and image distance ?
Asked by susrisangita792 | 23 Jul, 2023, 09:13: AM
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CBSE 10 - Physics
A student has focussed the image of an object of height 3 cm on a white screen using a concave mirror of focal length 12 cm. If the distance of the object from the mirror is 18 cm, find the values of the following: Distance of the image from the mirror;  Height of the image. Please answer these questions.
Asked by jayeshsah1995 | 04 Mar, 2023, 06:33: PM
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CBSE 10 - Physics
It is desired to obtain an erect image of an object, using concave mirror of focal length of 15 cm. Where should we place the object? Where will the image of this object be, if it is placed at 30 cm in front of the mirror? Draw a ray diagram for this situation also to justify your answer.
Asked by malikanushka07 | 17 Jun, 2022, 02:18: PM
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CBSE 10 - Physics
the question which i had asked regarding a ray of light incident perpendicularly from top of an object , is there in the cbse sample qp of 2021 but the answer given there is centre of curvature but the answer given by topperlearning is Focus, can you pls recheck
Asked by Trisha Gupta | 20 Nov, 2021, 03:30: PM
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CBSE 10 - Physics
what is the correct answer with explanation
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Asked by Trisha Gupta | 14 Nov, 2021, 01:14: AM
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CBSE 10 - Physics
The image formed by a concave mirror is observed to be virtual, erect and larger than the object. where should be the position of the object?
Asked by gsonal11 | 20 Sep, 2021, 02:39: PM
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CBSE 10 - Physics
Mam what is the paraxial rays?
Asked by masterprathamesh421 | 02 Jul, 2021, 06:27: AM
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CBSE 10 - Physics
if an image formed an a concave mirror is real and enlarged its magnification will be
Asked by purnimap035 | 27 May, 2021, 07:56: PM
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CBSE 10 - Physics
explain why a ray of light passing through the centre of curvature of a concave mirror gets reflected along the same path ?
Asked by bhavikabhatia1125 | 27 May, 2021, 06:53: PM
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CBSE 10 - Physics
 An object of size 5 cm is placed at a distance of 20cm in front of concave mirror of radius of curvature 30cm. a) Find the position of the image, its nature and size.  b) Draw the corresponding ray diagram. 
Asked by sayantansaha225 | 26 May, 2021, 05:13: PM
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