7.8 x 106ms-12
1.1 x 104ms-1
3.5 x 107ms-1
6.0 x 107 ms-1
1.2 x 108ms2-1
Correct answer is B
Hint: V = √2gr = √(2x10x6x106) + 1.1 x 104ms-1
Which of the following is not a property of longitudinal waves?
compression
reflection
refraction
polarization
diffraction
Correct answer is D
No explanation has been provided for this answer.