Wave Basics: f, λ & Speed

Frequency, wavelength, amplitude, and v = fλ. Ideal for students preparing board exams and competitive tests.

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QUESTION NO 01

A wave transfers?

Answer: Energy

Waves transport energy (and momentum) without net transport of the medium's mass.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 02

Frequency is measured in?

Answer: Hertz

Frequency f is in hertz (Hz) = s⁻¹.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 03

Wave speed v equals?

Answer: fλ

v = fλ for periodic waves.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 04

Longitudinal waves have oscillations?

Answer: Parallel to propagation direction

In longitudinal waves, particles oscillate along the travel direction (e.g. sound in air).

Shahzad Mahota @shahzad-mahota

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QUESTION NO 05

Transverse waves have oscillations?

Answer: Perpendicular to propagation

Transverse: displacement ⊥ to wave velocity (e.g. waves on a string).

Shahzad Mahota @shahzad-mahota

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QUESTION NO 06

Sound cannot travel through?

Answer: Vacuum

Sound needs a material medium; vacuum has none.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 07

Speed of sound is generally greatest in?

Answer: Solids

Sound is typically fastest in solids due to strong coupling and high modulus.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 08

Audible frequency range for humans is about?

Answer: 20 Hz to 20 kHz

Typical human hearing spans roughly 20 Hz–20 kHz.

Shahzad Mahota @shahzad-mahota

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QUESTION NO 09

Ultrasound refers to frequencies?

Answer: Above ~20 kHz

Ultrasound is sound above the audible upper limit (~20 kHz).

Shahzad Mahota @shahzad-mahota

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QUESTION NO 10

Infrasound refers to frequencies?

Answer: Below ~20 Hz

Infrasound is below ~20 Hz.

Shahzad Mahota @shahzad-mahota

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Wave Basics: f, λ & Speed

A wave transfers?

Frequency is measured in?

Wave speed v equals?

Longitudinal waves have oscillations?

Transverse waves have oscillations?

Sound cannot travel through?

Speed of sound is generally greatest in?

Audible frequency range for humans is about?

Ultrasound refers to frequencies?

Infrasound refers to frequencies?

Published By

Shahzad Mahota

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00

00

00

00

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Wave Basics: f, λ & Speed

A wave transfers?

Explanation

Frequency is measured in?

Explanation

Wave speed v equals?

Explanation

Longitudinal waves have oscillations?

Explanation

Transverse waves have oscillations?

Explanation

Sound cannot travel through?

Explanation

Speed of sound is generally greatest in?

Explanation

Audible frequency range for humans is about?

Explanation

Ultrasound refers to frequencies?

Explanation

Infrasound refers to frequencies?

Explanation

Published By

Shahzad Mahota

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