Given below is a crossword puzzle based on this lesson. Use hints to fill in the blank spaces with letters that complete the words. Down Across (D) 1: Thorough washing (A) 1: Keeps warm 2: Animal fibre 2: Its leaves are eaten by silkworms 3: Long thread like structure 3: Hatches from egg of moth
Which of the following is an animal fibre ?
An example of animal fibre is
Paheli wanted to buy a gift made of animal fibre obtained without killing the animal. Which of the following would be the right gift for her to buy?
Question|Optical Fibre|Graph Between ???? And I|Advantages Of Optical Fibre
Pick out the correct staments about optical fibres from the following: S1: Optical fibres are used for the transmission of optical signals only S2: Optical fibres are used for transmission of optical electrical signals S3: The intensity of light signals sent through optical fibres suffer very small loss S4: Optical fibres effectively employ the principle of multiple total internal reflections S5: Optical fibres are glass fibres coated with a thin layer of a material with lower refractive index
In an optical fibre
Introduction|Wool|Wool Yielding Animals|From Fibre To Wool|OMR