Question Wine ai) Explain the term longitudinal and transverse wave giving an example to each. ii) Explain the
terms fundamental note, overtones and harmonic frequencies, iii) With sketches show how the
fundamental note and the first two overtones are produced in an open and closed pipe of length
L.
Question Ten
T
a) Suppose the velocity of a wave in string depends on the tension in the string, mass of the
string and the length. Show that V = (b) briefly explain the concept of Doppler Effect. (11) A
νμ
car approaches a large stationary reflector R with a velocity of 20m/s when sounding a note of
1000Hz from its homs. Another car B behind A is also traveling towards A with a velocity of
30m/s. Estimate the apparent frequencies noticed by driver of car B.

Anton created a chart listing different types of materials.which best complete the chart? (a)x: copper y: glass(b)x: rubber y: copper(c)x: paper y: silicon(d)x: silicon y: glass

Determine the change in width a, height b, thickness t when a plate is subjected to the uniform distributed load and is made of material having modulus of elasticity e=230 gpa and poisson's ratio ν=1/3. given : a=400 mm and b= 300 mm also the uniformly distributed load in downward y direction of plate is 2 mn/m and in the positive x direction is 3 mn/m and t=20 mm

Search coils and credit cards. one practical way to measure magnetic field strength uses a small, closely wound coil called a search coil. the coil is initially held with its plane perpendicular to a magnetic field. the coil is then either quickly rotated a quarter-turn about a diameter or quickly pulled out of the field. (a) derive the equation relating the total charge q that flows through a search coil to the magnetic-field magnitude b. the search coil has n turns, each with area a, and the flux through the coil is decreased from its initial maximum value to zero in a time ∆t. the resistance of the coil is r, and the total charge is q = i∆t, where i is the average current induced by the change in flux. (b) in a credit card reader, the magnetic strip on the back of a credit card is rapidly “swiped” past a coil within the reader. explain, using the same ideas that underlie the operation of a search coil, how the reader can decode the information stored in the pattern of magnetization on the strip. (c) is it necessary that the credit card be “swiped” through the reader at exactly the right speed? why or why not?