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: • It is used to change the amplitude of a signal. • The purpose of an amplifier is to produce an output signal larger than that of the input signal. • It is used to convert Direct current into Alternate Current.
The weeds that produce all or most of their vegetative growth beneath the water surface, having true roots, stems and leaves are:
Albedo of dry black soil _____ than moist black soil
Which method is commonly used to propagate Gerbera plants?
Edible part of Knol-Khol is
Cell is the fundamental structural and functional unit of all living organisms. It was first discovered by ____
The law that determines best use of limited resources among alternative use is known as
Walnuts are a rich source of:
Land equivalent ration (LER) is used to evaluate which of the following option?
Among the given crops, which crop has the highest percentage of irrigated area?
An example for groundnut variety released through mutation
Relevant for Exams:
