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Properties of Waves and Introduction to Signals

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Properties of Waves and Introduction to Signals

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Questions and Answers

What is the definition of a wave?

A disturbance that travels in a medium from one point to another symmetrically in a given amount of time (correct)

A disturbance that travels in a medium with a circular motion

A disturbance that travels in a straight line through a medium

A disturbance that travels in a medium with an irregular path

What is the difference between sound waves and light waves?

Sound waves travel faster than light waves

Light waves need a medium to travel, whereas sound waves do not require a medium

Sound waves need a medium to travel, whereas light waves do not require a medium (correct)

Light waves travel slower than sound waves

What are the two main types of waves?

Mechanical and Electromagnetic waves

Longitudinal and Transverse waves (correct)

Pulse and Periodic waves

Circular and Elliptical waves

What does the term 'wavelength' refer to in the context of waves?

Total distance between two consecutive crests and troughs Signup and view all the answers

What does amplitude represent in the context of a wave?

The total displacement of a wave from its resting position Signup and view all the answers

What is the formula for the speed/velocity of a wave?

$speed = wavelength * frequency$ Signup and view all the answers

Which property of waves measures the total number of waves passing through a definite point in a given period?

Frequency Signup and view all the answers

What instrument is used to measure the frequency of a vibrating or rotating object?

Stroboscope Signup and view all the answers

What is the SI unit of wavelength?

Meter (m) Signup and view all the answers

The time period is defined as the time a particle of a medium takes to make a whole vibrational cycle and is measured in which units?

Seconds (s) Signup and view all the answers

What is the formula for calculating wavelength?

$\lambda = v/f$ Signup and view all the answers

The speed of a wave is defined as the total distance covered by a point on the wave in a specific period. What is the SI unit of speed?

$m/s$ Signup and view all the answers

What is the symbol used to denote wavelength?

$\lambda$ Signup and view all the answers

What property of waves measures the intensity or strength of the wave?

Amplitude Signup and view all the answers

What does the relation between wavelength, speed, and frequency indicate for an electromagnetic wave propagating via vacuum?

The relation indicates $f = c/ \lambda$. Signup and view all the answers