Time Period

Q.

The sound from a mosquito is produced when it vibrates its wings at an average rate of 500 vibrations per second. What is the time period of the vibration?

Q. Name the type of motion being performed by pendulum of a wall clock.

Q. Explain oscillatory motion by giving one example.

Q. The motion of a pendulum is

1. rotatory
2. curvilinear
3. oscillatory
4. rectilinear

Q. The time period of a source of sound is 0.01 s. How many times does it vibrate in a minute?

1. 6000 times
   
2. 600 times
   
3. 1000 times
4. 100 times

Q. A bee is making a sound by vibrating its wings 500 times per second. What is the time period of the sound?​

1. 0.002 s​
2. 0.2 s​
3. 500 s​
4. 0.02 s

Q. The correct relation for speed is :

Q.

Two sounds in a medium are having wavelengths $1.3m$ and $3.9m$. A person listens to these sounds. What difference would the listener feel?

1. First sound is heard with higher pitch.

2. Second sound is heard with higher pitch.

3. First sound is louder.

4. First sound is heard with better quality.

Q. A simple pendulum takes 32 s to complete 20 oscillations. What is the time period of simple pendulum?

Q.

Which of these products is equal to 1?

1. frequency $\times$ amplitude

2. frequency $\times$ time period

3. amplitude $\times$ time period

4. frequency $\times$ wavelength

Q.

1. Define speed.
2. How do we say if one object has a higher speed than another?