All waves require a material medium to propagate can propagate through a vacuum
ID: 3162181 • Letter: A
Question
All waves require a material medium to propagate can propagate through a vacuum All of the above None of the above The motion of an oscillating object is given by: y(x, t) = 0.07 sin(pi t + 0.5 pi). The object is at the origin when t is 0.50 s 0.75 s 1.50 s 2.00 s The wave on a string is given by y(x, t) = 5sin(6x + 3t). What is the linear speed of the wave? 0.5 m/s 1 m/s 2 m/s 3 m/s As a wave travels at a constant speed into a medium in which its wavelength increases, its frequency would increase remain the same decrease None of the above A 2 MHz radio signal is sent a distance of 0.3 billion meters from Earth to a spaceship orbiting Mars. Approximately how much time does it take the radio signal to travel from Earth to the spaceship? 0.1 s 1 s 3s 10 sExplanation / Answer
16. All waves require a material medium to travel.
Otherwise, there is no propagation of disturbance.
17.y(x,t) = 0.07sin (t + 0.5)
Since the position is at origin, 0.07sin (t + 0.5) = 0
Hence, sin (t + 0.5) = 0
Hence t + 0.5 = 2n
So t + 0.5 = 2n.
Taking n =1, t = 1.5 s