AI Mentor

Check Your IQ

Free Expert Demo

Try Test

Courses

Dropper NEET Course Dropper JEE Course Class - 12 NEET Course Class - 12 JEE Course Class - 11 NEET Course Class - 11 JEE Course Class - 10 Foundation NEET Course Class - 10 Foundation JEE Course Class - 10 CBSE Course Class - 9 Foundation NEET Course Class - 9 Foundation JEE Course Class -9 CBSE Course Class - 8 CBSE Course Class - 7 CBSE Course Class - 6 CBSE Course

Offline Centres

A pendulum oscillates $40 times$ in $4 second$ . Its frequency is ____ $s$ .

see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.

An Intiative by Sri Chaitanya

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

A pendulum oscillates

40 times

4 second

. Its frequency is

0.1 s

.
Given,
Number of oscillations,

n = 40

Time for which it oscillates,

t = 4 s

We know that frequency of vibration is the number of oscillations per second. Its unit is Hertz

(Hz)

. The time period of a sound wave is the time taken to complete one oscillation. The time period is the reciprocal of the frequency. Mathematically, the frequency

(f)

is given by the relation

f = \frac{n}{t}

On substituting the values, we get the frequency as

\Rightarrow f = \frac{40}{4}

\Rightarrow f = 10 Hz

Also it is known that the time period

(T)

is given as

T = \frac{1}{f}

On substituting the values, we get

\Rightarrow T = \frac{1}{10}

\Rightarrow T = 0.1 s

Hence, the time period is

0.1 s

Watch 3-min video & get full concept clarity

courses

No courses found

Result Producing online coaching for JEE/NEET of south India

Largest All India Test Series for JEE/NEET

Best Online Course for IIT JEE

Best Online Course for NEET

Best Online Course for CBSE

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Get Expert Academic Guidance – Connect with a Counselor Today!