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CBSE Class 12-science Answered

Is combination of a mirror and lens in syllabus of class 12? 
Asked by govtsecschoolnayaganv051 | 24 Feb, 2020, 04:17: PM
Expert Answer
Following are the topics included in Chapter - Ray optics and optical instruments:
 
Reflection of light, spherical mirrors, mirror formula, refraction of light, total internal reflection and its applications, optical fibers, refraction at spherical surfaces, lenses, thin lens formula, lensmaker's formula, magnification, power of a lens, combination of thin lenses in contact, refraction of light through a prism. Scattering of light - blue colour of sky and reddish appearance of the sun at sunrise and sunset. Optical instruments: Microscopes and astronomical telescopes (reflecting and refracting) and their magnifying powers. 
 
Combination of thin lenses in contact is mentioned is there in syllabus. While the telescopes are also mentioned in syllabus. Reflecting telescope is made from combination of mirror and lens. 
Answered by Shiwani Sawant | 24 Feb, 2020, 04:54: PM
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