MYTUTOR SUBJECT ANSWERS

663 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...

2 years ago

Answered by Monique, an A Level Physics tutor with MyTutor


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

147 SUBJECT SPECIALISTS

£30 /hr

Anuradha D.

Degree: Physics (Masters) - Durham University

Subjects offered:Physics, Music+ 4 more

Physics
Music
Maths
Further Mathematics
Chemistry
-Personal Statements-

“Hello everyone! My name is Anuradha (you can call me Anu), and I am a Physics Undergrad at Durham. I have always had a “thing” for science and am so pleased to be studying it – and hope that I can give you all the support you need to ...”

£20 /hr

Jacob H.

Degree: Physics with a year in Europe (Masters) - Imperial College London University

Subjects offered:Physics, Maths+ 2 more

Physics
Maths
Further Mathematics
.PAT.

“Maths and Physics are very logical subjects. With the correct approach to teaching, anyone can learn maths easily. I'm sure you'd agree.”

£30 /hr

Sam E.

Degree: Medicine (Bachelors) - Imperial College London University

Subjects offered:Physics, Science+ 4 more

Physics
Science
Chemistry
Biology
-Personal Statements-
-Medical School Preparation-

“I have 5 years of experience offering GCSE and A level science tuition focusing on interactive teaching and past paper questions.”

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

The braking distance of a road train travelling at 15m/s is 70m. Assuming that the same braking force is applied at all speeds, show that the braking distance of a road train when travelling at 25m/s is about 190m.

What is the difference between accuracy and precision?

A 100g mass is on a circular turntable spinning at 78 revolutions per minute. The maximum frictional force between the mass and turntable is 0.50N. Find the maximum distance from the center of the turntable at which the mass would stay on the turntable.

A satellite is in a stationary orbit above a planet of mass 8.9 x 10^25 kg and period of rotation 1.2 x 10^5 s. Calculate the radius of the satellite's orbit from the centre of the planet.

View A Level Physics tutors

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

mtw:mercury1:status:ok