Answer
Verified
431.1k+ views
Hint: A simple pendulum is a hypothetical apparatus which consists of a point mass m suspended from a weightless, frictionless thread of constant length l and fixed at a pivotal point P. The motion of the body about the string is periodic when displaced to an initial angle of deviation from the original equilibrium position is small, representing a simple harmonic motion.
Complete step by step answer:
The information given to us:
Length of the simple pendulum,$l=50cm=0.5m$
And acceleration due to gravity, $g=9.8m/{{s}^{2}}$
The time period of a simple pendulum is given by,
$T=2\pi \sqrt{\dfrac{l}{g}}$
Where l is Length of the simple pendulum
And g is the acceleration due to gravity.
Putting the values in the formula, we get
$T=2\pi \sqrt{\dfrac{0.5}{9.8}}$
$\Rightarrow T=2\pi \sqrt{\dfrac{10}{196}}$
\[\Rightarrow T=\dfrac{2\pi }{14}\sqrt{10}\]
\[\Rightarrow T=\dfrac{\pi }{7}\sqrt{10}\]
\[\therefore T=1.419\]
Therefore, Time period of the simple pendulum, \[T=1.419\sec \]
As we know, frequency is the inverse of Time Period, thus we can find out frequency of the pendulum by
$\nu =\dfrac{1}{T}$
Putting the values, we get
$\nu =\dfrac{1}{1.419}$
\[\therefore \nu =0.745Hz\]
Therefore, frequency of the simple pendulum, \[\nu =0.745Hz\]
Hence, the correct option is option (D)\[1.419~sec\], $0.7045Hz$.
Note:
One is advised to convert quantities into their standard units as and when required just like how we have converted few into meters so as to avoid getting an incorrect answer. It is also advised to keep in mind that a simple pendulum is in equilibrium until and unless displaced to an angle, when it swings to and from extreme positions and represents a simple harmonic motion.
Complete step by step answer:
The information given to us:
Length of the simple pendulum,$l=50cm=0.5m$
And acceleration due to gravity, $g=9.8m/{{s}^{2}}$
The time period of a simple pendulum is given by,
$T=2\pi \sqrt{\dfrac{l}{g}}$
Where l is Length of the simple pendulum
And g is the acceleration due to gravity.
Putting the values in the formula, we get
$T=2\pi \sqrt{\dfrac{0.5}{9.8}}$
$\Rightarrow T=2\pi \sqrt{\dfrac{10}{196}}$
\[\Rightarrow T=\dfrac{2\pi }{14}\sqrt{10}\]
\[\Rightarrow T=\dfrac{\pi }{7}\sqrt{10}\]
\[\therefore T=1.419\]
Therefore, Time period of the simple pendulum, \[T=1.419\sec \]
As we know, frequency is the inverse of Time Period, thus we can find out frequency of the pendulum by
$\nu =\dfrac{1}{T}$
Putting the values, we get
$\nu =\dfrac{1}{1.419}$
\[\therefore \nu =0.745Hz\]
Therefore, frequency of the simple pendulum, \[\nu =0.745Hz\]
Hence, the correct option is option (D)\[1.419~sec\], $0.7045Hz$.
Note:
One is advised to convert quantities into their standard units as and when required just like how we have converted few into meters so as to avoid getting an incorrect answer. It is also advised to keep in mind that a simple pendulum is in equilibrium until and unless displaced to an angle, when it swings to and from extreme positions and represents a simple harmonic motion.
Recently Updated Pages
How many sigma and pi bonds are present in HCequiv class 11 chemistry CBSE
Mark and label the given geoinformation on the outline class 11 social science CBSE
When people say No pun intended what does that mea class 8 english CBSE
Name the states which share their boundary with Indias class 9 social science CBSE
Give an account of the Northern Plains of India class 9 social science CBSE
Change the following sentences into negative and interrogative class 10 english CBSE
Trending doubts
Which are the Top 10 Largest Countries of the World?
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
Difference Between Plant Cell and Animal Cell
Give 10 examples for herbs , shrubs , climbers , creepers
Differentiate between homogeneous and heterogeneous class 12 chemistry CBSE
The Equation xxx + 2 is Satisfied when x is Equal to Class 10 Maths
How do you graph the function fx 4x class 9 maths CBSE
Write a letter to the principal requesting him to grant class 10 english CBSE