Q.1: a) Both longitudinal and transverse waves can propagate througha solid. A w
ID: 1751350 • Letter: Q
Question
Q.1:
a) Both longitudinal and transverse waves can propagate througha solid. A wave on the surface of a liquid can involve bothlongitudinal and transverse motion of elements of the medium. Onthe other hand, a wave propagating through the volume of a fluidmust be purely longitudinal, not transverse. Why?
b) A sinusoidal wave is traveling along a rope. The oscillatorthat generates the wave completes 40.0 vibrations in 30.0 s. Also,a given maximum travels 425 cm along the rope in 10.0 s. What isthe wavelength?
Marks=5 +3
Q.2:.
a) A satellite in orbit is not truly traveling through a vacuum.It is moving through very, very thin air. Does the resulting airfriction cause the satellite to slow down?
b) Explain the similarities and differences betweenNewton’s law of universal gravitation and Coulomb’slaw.
Marks = 3 + 5
Q.3:
a) The electric field inside a hollow, uniformly charged sphereis zero. Does this imply that the potential is zero inside thesphere?Explain. Marks = 5
Q.4:
a) What is the net charge of a charged capacitor? Marks= 3
b) (a) If a drop of liquid has capacitance 1.00 pF, what isits radius? (b) If another drop has radius 2.00 mm, what is itscapacitance? (c) What is the charge on the smaller drop if itspotential is 100V? Marks= 6
Explanation / Answer
Q)A sinusoidal wave is traveling along a rope. Theoscillator that generates the wave completes 40.0 vibrations in30.0 s. Also, a given maximum travels 425 cm along the rope in 10.0s. What is the wavelength? Frequency f = (40.0 )/(30.0s) The speed of the wave is v = (4.25m)/(10.0 s) The wavelength is = v/f Substitute the values.Related Questions
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