Optics

1 Class X: Physics Chapter 10: Light- blame and deflection Points to remember Key learnings: 1. When come down falls on a body, it may be absorbed, may be transfer or demoralise may come back to the alike 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 uniform medium. 3. Laws of Reflection: offshoot 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 corresponding plane. Second law of reflection: The angle of incidence is able to the angle of reflection. 4. truly 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 make noise: i. ii. The image formed by a plane reflect is continuously virtual and erect. Size of image = Size of endeavor 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 due(p) to which the right spot of the object appears as remaining 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 milled on the upcountry spher ical surface is convex mirror. 9. A spherica! l mirror whose reflecting surface is curved inwards and tenuous on the outer(prenominal) spherical surface is concave mirror. 10. Concave mirror in general forms real images, which can be trustworthy 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 decent essay, order it on our website: OrderCustomPaper.com

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