Answer:

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Explanation:

• Braille is a tactile writing system used by people who are visually impaired, including people who are blind, deafblind or who have low vision. It can be read either on embossed paper or by using refreshable braille displays that connect to computers and smartphone devices.

• Light is defined as the electromagnetic radiation with wavelengths between 380 and 750 nm which is visible to the human eye.

• When a beam of parallel light rays is incident on a smooth and plane surface, the reflected rays will also be parallel. This type of reflection is called Regular Reflection.

• Clear image is formed in case of regular reflection. When reflected rays are not parallel to each other, the reflection is called irregular reflection.

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Answer:

Explanation:

Braille is a tactile writing system used by people who are visually impaired, including people who are blind, deafblind or who have low vision. It can be read either on embossed paper or by using refreshable braille displays that connect to computers and smartphone devices.

Light or visible light is electromagnetic radiation that can be perceived by the human eye. Visible light is usually defined as having wavelengths in the range of 400–700 nanometres, corresponding to frequencies of 750–420 terahertz, between the infrared and the ultraviolet.

When a beam of parallel light rays is incident on a smooth and plane surface, the reflected rays will also be parallel. This type of reflection is called Regular Reflection.

When a parallel light beam reaches a rough surface, the light rays are reflected in various directions, or the light rays are dispersed, termed as irregular reflection.

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