Question 1 1 hour a) Express the relationship between the frequency, wavelength and speed of a wave b) If the speed of sound through air is 330 m s¹, calculate the wavelength of a sound wave of frequency 2000 Hz. c) What is the speed of light if it takes 1.3 seconds to travel from the earth to the moon, a distance of 390 00 km? i) How many meters would light travel in a minute? [1.2]
Properties of sound
A sound wave is a mechanical wave (or mechanical vibration) that transit through media such as gas (air), liquid (water), and solid (wood).
Quality Of Sound
A sound or a sound wave is defined as the energy produced due to the vibrations of particles in a medium. When any medium produces a disturbance or vibrations, it causes a movement in the air particles which produces sound waves. Molecules in the air vibrate about a certain average position and create compressions and rarefactions. This is called pitch which is defined as the frequency of sound. The frequency is defined as the number of oscillations in pressure per second.
Categories of Sound Wave
People perceive sound in different ways, like a medico student takes sound as vibration produced by objects reaching the human eardrum. A physicist perceives sound as vibration produced by an object, which produces disturbances in nearby air molecules that travel further. Both of them describe it as vibration generated by an object, the difference is one talks about how it is received and other deals with how it travels and propagates across various mediums.
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Question 1
Question 2
a) Express the relationship between the frequency, wavelength and speed of a wave
b) If the speed of sound through air is 330 m s¹, calculate the wavelength of a sound wave of frequency 2000 Hz.
c) What is the speed of light if it takes 1.3 seconds to travel from the earth to the moon, a distance of 390 00 km?
i) How many meters would light travel in a minute? [1.2]
a)State Snell's law of refract
b) In the diagram ₁
medium 3 is glass.
Calculate:
=
A
Supervised Assessment - Physics of the Senses
1 hour
a) The angle0₂.
b) The refractive index of the (3d material) glass.
f6 J
55⁰ and 03 = 30°. Medium 1 is air, medium 2 is water of refractive index 1.33, and
Medium1 Air
20
17
&
f8
7
Accessibility Mode
19
Medium2
f10
9
Immersive Reader
Water
F12
h
Open in Desktop A
scroll
100%
Raining now](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F766f9f81-78b3-402e-8700-d2da2339454e%2F7eb9ed2a-1c11-4ab2-b06c-841b3896ce86%2Frspugca_processed.jpeg&w=3840&q=75)
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i want to know about the answers of q2 part b
![Q Search
Question 1
Question 2
a) Express the relationship between the frequency, wavelength and speed of a wave
b) If the speed of sound through air is 330 m s¹, calculate the wavelength of a sound wave of frequency 2000 Hz.
c) What is the speed of light if it takes 1.3 seconds to travel from the earth to the moon, a distance of 390 00 km?
i) How many meters would light travel in a minute? [1.2]
a)State Snell's law of refract
b) In the diagram ₁
medium 3 is glass.
Calculate:
=
A
Supervised Assessment - Physics of the Senses
1 hour
a) The angle0₂.
b) The refractive index of the (3d material) glass.
f6 J
55⁰ and 03 = 30°. Medium 1 is air, medium 2 is water of refractive index 1.33, and
Medium1 Air
20
17
&
f8
7
Accessibility Mode
19
Medium2
f10
9
Immersive Reader
Water
F12
h
Open in Desktop A
scroll
100%
Raining now](https://content.bartleby.com/qna-images/question/766f9f81-78b3-402e-8700-d2da2339454e/33125df2-4c43-4af6-8534-0d1090dcd726/lw88l1_processed.jpeg)
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