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REFLECTION, REFRACTION & PRISM

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Reflection of light - When a ray of light strikes a polished surface, it bounces back in a particular direction. This is known as reflection of light.  Laws of Reflection - The laws of reflection can be summarized as : 1. The incident ray,  the reflected ray and the normal at the point of incidence, all lies in the same plane.  2. The angle of incidence is equal to the angle of reflection.   Refraction of light  - When a ray of light passes from one medium (say air)  to another medium (say glass)  of different optical density, it deviates from its original path. This is called refraction.  Laws of Refraction - 1. The incident ray and the refracted ray are on the opposite sides of the normal at the point of incidence and all three lie in the same plane.  2. The ratio of sine of angle of incidence to the Sine of angle of refraction is constant.  This is known as snell's law.  Sine ang...
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NATURAL SEABUCKTHORN FACE WASH

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Net Content : 100 ML PRODUCT CODE : 21000102 MRP : ₹ 406 Incl. of GST Description- Seabuckthorn Natural Face Wash helps in cleansing the skin by getting rid of pollutants settled on the pores. Made with extracts of the Seabuckthorn Fruit Pulp, Soapnut, Shikakai and Aloe Vera and Essential Oil of Seabuckthorn, use the face wash regularly to get a clear and supple  skin. This Seabuckthorn Natural Face Wash contains: SEABUCKTHORN FRUIT PULP EXTRACT: - Using the sea buckthorn extracts daily helps slow down the signs of aging by enriching the tissues in the skin with the right kind of nutrients. SOAPNUT EXTRACT: - With great cleansing and cooling properties, soapnut extract can make the skin feel very gentle and soft. It has also shown minor healing in skin problems like eczema, psoriasis, pimples, and blackheads. SHIKAKAI EXTRACT: - It acts as a natural scrub which deep cleanses the skin and helps it get rid of settled dust and di...
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AXES AND ANGLES OF EYEBALL

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Optical Axis A line passing through centre of cornea,  centre of lens and posterior pole of retina is the optical axis of eyeball. (ONA)  Visual Axis A line joining point of taxation with phobia and passing through nodal point of eyeball is called visual axis. Nodal point of eyeball is just anterior to posterior capsule of lens.  Fixation point is the point which is being seen with phobia at any particular moment. (VNF)  Pupillary Axis This is a straight line that passes through centre of pupil. (OPA)  Fixation Axis This is a straight line that joins centre of rotation of eyeball with fixation point. (VC)  ------------------------------------------------------------------------------- ANGLES - 1. Angle Alpha -  Is the angle formed between optical axis and visual axis that is angle (ONV)   2. Angle Kappa -   Is the angle formed between visual axis and pupillary axis. (OPV)  ...
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