Notes of Chapter 10: Optical Instruments of “Physics XI” for FSc Part 1 published by Punjab Textbook Board, Lahore. These notes are very helpful to prepare Physics paper of FSc Part 1 for Federal Board, Multan Board, Faisalabad Board, Sargodha Board, Gujranwala Board, DG Khan Board, Rawalpindi Board or any other board of Punjab, Pakistan.

The normal human eye can focus a sharp image of an object of an eye if the object is located any where between infinity to a certain point called a near point …

• Least distance of distinct vision
• Magnifying and resolving power of optical instruments
• Microscope
• Simple microscope
• Compound microscope
• Telescope
• Astronomical telescope
• Spectrometer
• Speed of light
• Derivation to find speed of light
• Introduction to fibre optics
• Fibre optic principle
• Types of optical fibre
• Losses of power
• Advantages and disadvantages of optical fibre