Question

A wave is approaching a barrier that has a small hole at the center. Which describes the change in the wave as it encounters the barrier?

A.The wave will slow down
B.The wave will bend or defract
C.The wave will bounce in the opposite direction, or reflact.
D.The wave will increase its speed

Answer 1

Option-(B):

• When a wave is approaching a barrier that has a small hole at the center, then the waves will experience a more bending effect its over all structure just because the bending effect is produced when there is net motion of a wave on the edges of a vessels.

• So, the wave generated inside the water when faces a small whole at the center of the reservoir will experience a more diffraction mechanism as it moves across the region.

Answer 2

B.The wave will bend or defract

diffraction is the phenomenon of bending of waves around the edge of the obstruction in its path of motion. this happens more strongly when the dimensions of the slit is comparable with the wavelength of the wavelength undergoing the diffraction process. hence the correct choice would be B