Advertisements
Advertisements
प्रश्न
The frequency of sound is measured in ______.
उत्तर
The frequency of sound is measured in Hertz (Hz).
संबंधित प्रश्न
Define the terms : time period as related to a simple pendulum.
How is the time period of a simple pendulum affected, if at all, in the following situations:
- The length is made four times.
- The acceleration due to gravity is reduced to one-fourth.
How do you measure the time period of a given pendulum? Why do you note the time for more than one oscillation?
State how does the time period of a simple pendulum depend on (a) length of pendulum, (b) mass of bob, (c) amplitude of oscillation and (d) acceleration due to gravity.
Explain the two ways by which the pitch of the sound generated by a stretched string can be changed.
Two clocks A and B are shown in Figure 13.1. Clock A has an hour and a minute hand, whereas clock B has an hour hand, a minute hand as well as a second hand. Which of the following statement is correct for these clocks?
Give scientific reason.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
Give scientific reason.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
Give scientific reasons.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
Give scientific reason.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
