Question

place the matchstick stethoscope on your wrist.observe the movements in the matchstick. what did you find?

Answer 1

The matchstick will oscillate with the vibration of the pulse rate of our heart.
With every pulse in the veins, the matchstick will vibrate.

Answer 2

Answer:

If matchstick stethoscope is placed on the wrist it will start oscillating or vibrating. the reason of the vibrationof the matchstick stethoscope is the movement of the pulse. The pulse of human being is in continuous state of motion which can be felt by gently holding the wrist. Due to this motion of pulse, the matchstick stethoscope will also move representing the rate and movement of pulse.