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sagar kadyan

· started a discussion

· 1 Months ago

telephone seems more coreect (Question: 187725.0 )

bcz there is two way thing in telephone

Question:
DIRECTIONS: Find the odd pair from the given alternatives.
Options:
A) Dictaphone
B) Microphone
C) Gramophone
D) Telephone
Solution:
Ans: (a) Except option (A) all others are related to sound.


Dictaphone is a machine for recording and playing back dictated letters.

Gramophone is a sound recording and playing back round machine.

microphone is an instrument for converting sound waves in to electrical variations that can be reconverted in to sound after transmission by wire or radio or after recording. 

Telephone is an apparatus for transmitting sound.  

Knowledge Expert

· commented

· 1 Months ago

Dear Student,

Given answer is correct, we fixed the explanation.

keep learning with us!!
Regards
Team Toprankers

Knowledge Expert

· commented

· 1 Months ago

Yet to be approved!
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