Question

A simple pendulum completes 45 oscillation in one minute. It's frequency is *

option 1- 0.75 Hz

option 2 - 1.33 Hz

option 3 - 0.67 Hz

option 4- 1.5 Hz


answer me fast and no meaningless answer ​

Answer 1

Answer:

Given

Number of oscillationN=45

time T =1 min.

Frequency=N/T

45/60

=0.75hz

Answer 2

Answer :–

The correct option is (1) 0.75 Hz

Given :–

• Number of oscillation (N) = 45
• Time taken (t) = 1

To Find :–

• It's frequency.

Solution :–

Given that the number of oscillation which is denoted with (N) and time taken is denoted with (t).

We know that,

Frequency = $\dfrac{N}{t}$

• N = 45
• t = 1 minute = 60 seconds

Now, put the values in the formula of frequency.

⟹ $\dfrac{\cancel{45}}{\cancel{60}}$

Cut the denominator (60) and the numerator (45) by 5, we obtain

⟹ $\dfrac{\cancel9}{\cancel{12}}$

Now, cut the denominator (12) and the numerator (9) by 3, we obtain

⟹ $\dfrac{3}{4}$

Now, divide 3 by 4.

We get,

⟹ 0.75

Hence,

The correct option is (1) 0.75 Hz