MYTUTOR SUBJECT ANSWERS

354 views

A 1.6m long string fixed at both ends vibrates at its fundamental frequency... (i)what is this frequency?

For the first part, we consult the formula c=fλ. This tells us that wavelength is inversely proportional to frequency.. ie as one increases the other decreases. This means the lowest(fundamental) frequency goes with the longest wavelength. If you consult a diagram of a vibrating string, you'll see that the greatest wavelength is equal to twice the length of the string.(This is because there must be a node at each end, and is best shown with diagrams).

So the wavelength we are looking for is 1.6x2= 3.2m. Since this is a sound wave c=340m/s. All our numbers are in the correct units, so we may proceed, using f=cλ. The answer is f=106.25Hz

Monique  . A Level Physics tutor, A Level French tutor, A Level Maths...

1 year ago

Answered by Monique, an A Level Physics tutor with MyTutor


Still stuck? Get one-to-one help from a personally interviewed subject specialist

71 SUBJECT SPECIALISTS

£20 /hr

Ayusha A.

Degree: BEng electrical and electronics engineering (Bachelors) - Newcastle University

Subjects offered: Physics, Maths+ 1 more

Physics
Maths
Further Mathematics

“About me: I am a final year Electrical and Electronic Engineering student at Newcastle University. I took Mathematics, Further Mathematics, Chemistry and Physics as my A-level subjects. I did peer mentoring in university and also have...”

£20 /hr

Elena S.

Degree: Mechanical Engineering MEng (Masters) - Imperial College London University

Subjects offered: Physics, Maths+ 3 more

Physics
Maths
Further Mathematics
Chemistry
Biology

“I am currently studying Mechanical Engineering at Imperial College London. This comes out of my passion for forming real life solutions to problems and love of problem solving. It’s this that inspires my tutoring also. Throughout univ...”

£20 /hr

Vinay S.

Degree: Aerospace Engineering (Masters) - Bath University

Subjects offered: Physics, Science+ 4 more

Physics
Science
Maths
Further Mathematics
Economics
-Personal Statements-

“About Me: Hey! I'm a Aerospace Engineering student at the University of Bath. Although my course suggests I'm simply a Maths and Physics kind of guy, I also have a huge passion for Economics, so please feel free to pick my brain on any...”

MyTutor guarantee

About the author

Monique .

Currently unavailable: for regular students

Degree: Physics (Masters) - Oxford, Balliol College University

Subjects offered: Physics, Maths+ 3 more

Physics
Maths
French
Chemistry
Biology

“ABOUT ME I am a 19 year old physics student at Oxford University, and I love my subject, because I love solving challenging problems . I have wanted to tutor for a while now because of this; I’d like to help others with whatever they ...”

You may also like...

Posts by Monique

A 1.6m long string fixed at both ends vibrates at its fundamental frequency... (i)what is this frequency?

Atmospheric Pressure is about 1.0x10^5 Pa. What is the downward force of the air on a desktop of surface area 1m^2?

Find dy/dx where y=e^(4xtanx)

How do you know when to use savoir or connaitre?

Other A Level Physics questions

How do capacitors work and what are its units?

What is specific heat capacity?

What is meant by the binding energy of a nucleus?

If a car is travelling over a curved hill, what is the maximum speed it can travel before losing contact with the road surface?

View A Level Physics tutors

Cookies:

We use cookies to improve our service. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok