Question

answer this question with explanation ​

Answer 1

Answer :-

▸  frequency of pendulum = 0.67 Hz

▸  time period of pendulum = 1.5 s

Given :

• Number of oscillations pendulum take in one minute means 60 seconds = 40 oscillations

To find :

• Frequency of pendulum

• time period of pendulum

Formulae required :

↪ frequency = no. of oscillations / time taken

↪  time period = 1 / frequency

Solution :

Calculating frequency of pendulum

Using formula

↣ frequency = no. of oscillations / time taken

↣ frequency = 40 / 60

↣ frequency = 2 / 3 Hz =  0.67 Hz

Hence,

Frequency of pendulum is 2/3 Hertz or 0.67 hertz .

Calculating time period of pendulum

Using formula

↣ time period = 1 / frequency

↣ time period = 1 / (2/3)

↣ time period =  1.5 s  

Hence,

Time period of pendulum is 1.5 seconds .