Regarding the standing wave in Figure 2, if you want to decrease the node number by 1 by changing only one of the four quantities?(i) oscillation frequency, (ii) string tension, (iii) string linear density, and (iv) string length-how should you do it and what is your reason?

(Answer "increase" or ?decrease" and explain your reason.)

Standing waves

As shown In Figure 2, a standing wave is a wave whose shape remains fixed in position over time.

How should we change the parameters? (answer "increase" or ?decrease" and explain your reason) [12]

i. oscillation frequency [1]. Reason [2]:

ii. string tension [1]. Reason [2]:

iii. string mass density [1]. Reason [2]:

iv. string length [1]. Reason [2]:

Figure 2: Standing waves on a string.