Question text
25 A bell, on a wall outside a classroom, rings. A student is standing at point X shown on the view from above. position of student door open X bell door closed The door of the classroom is closed and the student in the room at X hears the bell ring. The door is opened, and the sound heard by the student from the bell is louder. What causes the sound reaching the student to be louder? A diffraction B dispersion C reflection D refraction
25 A bell, on a wall outside a classroom, rings. A student is standing at point X shown on the view
from above.
position
of student door open
X
bell
door closed
The door of the classroom is closed and the student in the room at X hears the bell ring.
The door is opened, and the sound heard by the student from the bell is louder.
What causes the sound reaching the student to be louder?
A diffraction
B dispersion
C reflection
D refraction
Select your answer: