Question
Which device converts sound waves to electrical
signals?Solution
Microphone: Converts a sound wave into an electrical signal. Loudspeaker: Converts an electrical signal into sound waves. Headphone: Converts electrical energy into mechanical energy to produce sound. Amplifier: β’ It is used to change the amplitude of a signal. β’ The purpose of an amplifier is to produce an output signal larger than that of the input signal. β’ It is used to convert Direct current into Alternate Current.
The committee decided to convene (A) to discuss (B) the impending (C) consequences (D) of their actions
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1. βBeing shy and
P. flabbergasted by the
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S. security at the gate and th...
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Which of the following is the first sentence of the passage?
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The question below consists of a set of labelled sentences. These sentences, when properly sequenced form a coherent paragraph. Select the most logical ...
1. The government of India has embarked
P. the people to choose their actual
Q. election in Jammu and Kashmir to allow
R. on a cons...
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