McqMate
Q. |
A bomb explodes on the moon. You will hear its sound on earth after – |
A. | 20 minutes |
B. | 2 hours 20 minutes |
C. | 3.7 hours |
D. | You cannot hear the sound of explosion |
Answer» D. You cannot hear the sound of explosion | |
Explanation: The sound will never reach Earth because there are not enough molecules or atoms of matter per cubic centimeter of space to create the pressure waves in a medium that is a sound wave. In simple words, Sound propagation needs a medium. The people on the Earth can see the flash, but no sound. |
View all MCQs in
PhysicsNo comments yet