Question

About Braille Script, which of the following is not true?
A. The system of raised dots used for reading and writing who are blind or severely visually impaired.
B. It was developed by Louis Braille.
C. It involves the usage of 10 dots.
D. Each letter or symbol is formed by a special pattern of dots known as a Braille cell.

Answer 1

Hint: Braille script is a tactile writing system that is used by visually impaired people. It helps in reading and writing by the means of raised dots. Each alphabet or symbol is made by different combinations of dots in different patterns. These dots are touched and then processed to recognize the letter they represent.

Complete answer:
> A Frenchman named Louis Braille developed a code for French alphabets in 1824 after he lost his sight, as a result of a childhood accident. He officially published this reading and writing system in 1829. This system was composed of raised dots on an embossed sheet. These dots were placed in distinct patterns each representing an alphabet. Each of these patterns was given a defined area on the script paper and this region is called Braille cell. This system came to be known as Braille Script.

> This system provides an effective way for visually challenged people to read and write. They can touch the bumps on paper and process them for what they mean in alphabetic terms. There is no limit to 10 dots in Braille as each of the alphabets is made with a different number of dots and in different patterns. 

Hence, option C is the correct answer. 

Note: In India, the ‘Right to Information Act’ has been published in Braille. In Canada, banknotes have Braille written over them. Although it does not contain typical Braille, this allows blind people to easily identify the bill.