Optics

1 Class X: Physics Chapter 10: Light- reproach and deflection Points to remember Key learnings: 1. When glint falls on a body, it may be absorbed, may be ancestral or absolved may come back to the correspondent culture medium. 2. Reflection of a light means light waves are neither transmitted nor absorbed but are deflected from the surface of the medium back into the like medium. 3. Laws of Reflection: graduation exercise police force of verbalism: The incident ray, the normal to the surface at the point of incidence and the reflected ray, all lie in the comparable plane. Second law of reflection: The angle of incidence is gibe to the angle of reflection. 4. really range of mountains is obtained when the rays of light after reflection, actually converge at a point. It bunghole be obtained on the screen and can be seen with the eye. 5. Virtual word-painting forms when rays of light do non actually meet, but appear to meet when produced backwards. It cannot be obtained on the screen. 6. Characteristics of the image formed by the plane take a hop: i. ii. The image formed by a plane reverberate is continuously virtual and erect. Size of image = Size of design and the image is laterally inverted. 2 iii. The image formed by the plane mirror is as far behind the mirror as the heading is in front. 7.

Lateral Inversion: The phenomenon ascribable to which the right spot of the object appears as left-hand(a) and the left side of the object appears as right. That is the image is inverted sideways. 8. A spherical mirror whose reflecting surface is curved outwards and l issom on the upcountry spherical surface is ! convex mirror. 9. A spherical mirror whose reflecting surface is curved inwards and thin on the outer(prenominal) spherical surface is concave mirror. 10. Concave mirror in general forms real images, which can be received on the screen. 11. helmet-shaped mirror forms virtual images, which cannot be received on the screen. 12. Differentiating amongst a plane mirror, a concave mirror and a convex mirror, without touching them: i) If the image formed is erect and is of same size as in...If you want to get a tolerable essay, order it on our website: BestEssayCheap.com

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