Question
Explain in brief about Braille with the help of some example.
✓
Answer
Braille is a system of touch reading and writing for blind persons in which raised dots to represent the letters of the alphabet. There is a rectangular block called cells that represent a certain alphabet or number or another symbol. Each cell contain risen tiny dot and different combination of this dot is used to represent a different symbol.Let take one example:
Louis Braille is a creator of Braille. He uses $3 \times 2$ dot in each cell to represent the alphabet. Here is an image that shows how to represent $'A'$ in Braille (only one dot is raised).
Louis Braille is a creator of Braille. He uses $3 \times 2$ dot in each cell to represent the alphabet. Here is an image that shows how to represent $'A'$ in Braille (only one dot is raised).
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
A pendulum oscillates $40$ times in $4$ seconds. Calculate its.
$a.$ time$-$period, and
$b.$ frequency.
Can we hear the sound produced by the oscillations of this pendulum? Give reason for your answer.
→$a.$ time$-$period, and
$b.$ frequency.
Can we hear the sound produced by the oscillations of this pendulum? Give reason for your answer.
What will happen to ‘pooris’ and ‘unused kneaded flour’ if they are left in the open for a day or two?
State two advantages of the process of transplantation in growing crops.
Observe the figure given as Fig. and answer the questions that follow.
$a.$ Label $A$ and $B.$
$b.$ Identify the process.
$c.$ What happens during this process and what is formed?
→$a.$ Label $A$ and $B.$
$b.$ Identify the process.
$c.$ What happens during this process and what is formed?
Consider the following elements: Sodium, Sulphur, Carbon, Magnesium Which of these elements will form?
$a.$ Acidic oxides.
$b.$ Basic oxides.
→$a.$ Acidic oxides.
$b.$ Basic oxides.
Which of the entities in the picture below consists of matter, and which of them do not?
What happens when a copper vessel is exposed to moist air for a long time?
Make a sketch of the human nerve cell. What function do nerve cells perform?
Name the two types of reflection of light. Which type of reflection makes us see an object from all directions?
How do carelessly thrown plastic bags $($polythene bags$)$ affect:
$a.$ Dirty water drains and sewers?
$b.$ Animals $($such as cows$)$?
→$a.$ Dirty water drains and sewers?
$b.$ Animals $($such as cows$)$?