The correct answer is Destructive Interference.Consider the image attached below. Two waves are travelling towards each other. Blue wave always has a positive peak and the red wave always has a negative peak.
Now imagine these waves are moving through a rope. If blue waves will try to move the rope in positive direction, the red wave will pull it down, and thus the two waves will cancel the effect of each other. Thus resulting in a destructive interference.
Answer:
[MLT⁻²], the first option, is the answer.
Explanation:
Pressure is the unit expressed as force per unit area.
The dimensional formula of pressure is [MLT⁻²].
Thus the answer would be option 1!
Answer:
527Hz
Explanation:
The beat frequency of any two waves is:
Fbeat =|f1 – f2|
i.e
for frequency tied to length increase (wavelength increases as length increases, therefore frequency decrease:: Fbeat = f1+f2
for frequency tied to length decrease wavelength increases as length increases, therefore frequency also increases : Fbeat = f1-f2
Note that a wavelength increase means a decrease of frequency because v = fλ
Therefore from the question:
Fbeat =4 beats/s
F2 -523Hz
Fbeat = f1-f2
F1=Fbeat+F2
=523+4
=527Hz
Answer: there can't be acceleration when there is no movement
Explanation: