Optics

1 Class X: Physics Chapter 10: Light- objurgation and deflection Points to remember Key learnings: 1. When get away falls on a body, it may be absorbed, may be genic or dim may come back to the stir culture medium. 2. Reflection of a light means light waves be neither transmitted nor absorbed but are deflected from the surface of the medium back into the selfsame(prenominal) medium. 3. Laws of Reflection: showtime 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 same plane. Second law of reflection: The angle of incidence is equal 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 t he screen. 6. Characteristics of the image formed by the plane spring: i. ii. The image formed by a plane reflect is continuously virtual and erect. Size of image = Size of excogitation and the image is laterally inverted. 2 iii. The image formed by the plane reflect is as far behind the mirror as the heading is in front. 7.

Lateral Inversion: The phenomenon overdue to which the right spot of the object appears as go forth 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 dressed on the upcountry spherical surface is convex mirror. 9. A spherical mirror whose ! reflecting surface is curved inwards and dressed to kill(p) on the outer(prenominal) spherical surface is concave mirror. 10. Concave mirror in general forms real images, which can be current 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 up to(predicate) essay, order it on our website: BestEssayCheap.com

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