Question

Select the correct answer. an electric bell is placed inside a transparent glass jar. the bell can be turned on and off using a switch on the outside of the jar. a vacuum is created inside the jar by sucking out the air. then the bell is rung using the switch. what will we see and hear? picture of the electronic bell jar, consisting of a vacuum pump at the bottom and an electronic bell, cork, switch, and electric connection at the top a. we’ll see the bell move, but we won’t hear it ring. b. we won’t see the bell move, but we’ll hear it ring. c. we’ll see the bell move and hear it ring. d. we won’t see the bell move or hear it ring. e. we’ll see the sound waves exit the vacuum pump.

Answer 1

When an electric bell in a vacuum-sealed transparent jar is activated, we will observe the bell's movement but hear no sound, since sound requires a medium to travel through, which is absent in a vacuum.

Step-by-step explanation:

If an electric bell is placed inside a transparent glass jar and a vacuum is created inside the jar by sucking out the air, we will be observing a situation that demonstrates the properties of sound transmission in different media. Sound is produced by vibrations that cause changes in the pressure of a medium, such as air. However, sound cannot travel through a vacuum because there is no medium to transmit the vibrations. Light, on the other hand, being an electromagnetic wave, can travel through a vacuum. This means that when the bell is rung inside the vacuum jar, we'll see the bell move, but we won't hear it ring.