Chapter Ten – Optical Instruments
This chapter deals with the optical instruments,like magnifying glass,compound microscope and telescopes.study of optical fibers is also included in this chapter.
Minimum distance from the eye at which an object can be clear is called least distance of distinct vision.size of image to the size of object is called magnification.ability of an instrument to reveal the minor details of the object is called resolving power.simple microscope contains one convex lens.compound microscope contains two convex lens,objective lens of short focal length and eye-piece of medium focal length.to see distant objects telescope is used.spectrometer is used to study spectrum of light.