GK
INVENTIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Read this sentence from the article.The next time your telephone rings, express your gratitude to Alexander Graham Bell.The Greek word tele means “far off” and phon means “sound.” What is the meaning of telephone?
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a sound that is close by
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a sound that is very loud
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a sound that travels quietly
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a sound that travels a long way
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Explanation:
Detailed explanation-1: -Alexander Graham Bell proposed ‘ahoy’ as a standard phone greeting before Thomas Edison popularised the use of ‘hello’, which has stuck up to today.
Detailed explanation-2: -The world’s first wireless telephone conversation occurred in 1880, when Alexander Graham Bell and Charles Sumner Tainter invented and patented the photophone, a telephone that conducted audio conversations wirelessly over modulated light beams (which are narrow projections of electromagnetic waves).
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