Radius of curvature (R) is the radius of the sphere, of which the mirror is a part. Share to Twitter Share to Facebook Share to Pinterest. The geometric centre of a concave mirror is called its pole. Labels: class10-physics, class10-science, class12-Physics, class8-science. Object between C and F Convex mirrors diverge the light incident on them and hence they are called the diverging mirrors. Questions pertaining to spherical mirrors. Real images Differences Between Convex Mirror and Concave Mirror. If the cut part of the glass sphere is coated from inside with silver or a similar material, then its outer surface reflects the entire light incident on it, and thus forms a mirror. Irrespective of the position of the object, a virtual, erect and diminished image is formed between F and P, behind the convex mirror. Formation of Images by Spherical Mirrors What is reflection? The geometric centre of a convex mirror is called its pole. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. MCQs on Spherical Mirrors with answers . Depending on the position of the object in front of the concave mirror, the position, size and the nature of the image varies. Object at F d. none of the above Ans. Our mission is to provide a free, world-class education to anyone, anywhere. This will clear students doubts about any question and improve application skills while preparing for board exams. All distances are measured from the pole of the mirror. Rule 2: A light ray which first passes through the principal focus or appears to pass through the principal focus, after reflection, will travell parallel to the principal axis. If a part of a hollow glass sphere is cut and the cut part of the sphere is coated outside with silver or similar material, then its inner surface reflects the entire light incident on it, and thus, forms a mirror. An imaginary line passing through the centre of curvature and the pole of the mirror is called its principal axis. The first mirrors used by humans were most likely pools of water. We can observe ourselves magnified when the mirror is placed close to our face. Pole (P) is the geometric centre of the spherical mirror. Concave mirrors are used as shaving mirrors to see a larger image of the face. If you're seeing this message, it means we're having trouble loading external resources on our website. Write down four important characteristics of image formed by a plane mirror. Donate or volunteer today! 8: Spherical mirror 9. inverted 10: Screen 11: Concave 12: Virtual and Enlarged . Centre of curvature (C) is the centre of the sphere, of which the mirror is a part. Object at infinity Thus, the magnification produced by these mirrors is always less than one. Rule 1: A light ray incident parallel to the principal axis, after reflection, either actually passes through the principal focus or appears to pass through the principal focus. The location of the object does not affect the characteristics of the image. ii . Spherical mirrors can be further classified into the following two types as Irrespective of the position of the object, a virtual, erect and diminished image is formed between F and P, behind the convex mirror. A spherical mirror is a mirror that has the shape of a piece cut out of a spherical surface. Selina solutions for Concise Physics Class 8 ICSE chapter 6 (Heat Transfer) include all questions with solution and detail explanation. Last updated at April 23, 2020 by Teachoo. This is why, the rear view mirrors of the cars and bikes are made of convex mirrors. Produced by these mirrors is always erect, irrespective of the sphere, of which the,... 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