Question

Julements are incorrect
A pendulum A oscillates 16 times in 4 seconds and
pendulum B oscillates 40 times in 8 seconds. The
number of oscillations completed by pendulum Am
the time equal to the time taken by pendulum Bo
complete 100 oscillations is
(1) 160
(2) 80
(3) 40
(4) 320
which is correct option ​

Answer 1

Answer:

4 is your answer to the question

Answer 2

Answer:

The correct option is Option 2 i.e. 80 times.  

Explanation:

Pendulum B oscillate 40 times in 8 seconds.  

So, pendulum B oscillate 1 time in 8/40 seconds.  

So, pendulum B oscillate 100 times in $8 \times \frac{100}{40}=20$  seconds.  

In 4 seconds, pendulum A oscillates 16 times.  

So, in 1 second, pendulum A oscillates 16/4 times.  

So, in 20 seconds, pendulum A oscillates $16 \times \frac{20}{4} \text { times }=80$ times.

So, the time when pendulum B makes 100 oscillations, pendulum A makes 80 oscillations .