Answer
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Hint: The word seismograph can be divided into two base words, seismos and graph. We just have to understand the meaning of these two words and match them with the options given in the question.
Complete step by step solution:
The above image represents a seismograph. A seismograph or a seismometer is a device used to detect an earthquake. It also measures the intensity of the vibrations produced during an earthquake. It has a mass attached to the base which is fixed. Whenever an earthquake starts, the base moves and the mass does not. The motion of the base with respect to the mass is commonly transformed into an electrical voltage which is recorded on paper, magnetic tape, or any recording medium which is being used. The motion so recorded on the measuring medium is then converted into the required intensity of the earthquake.
The word seismograph is made up of two base words, ‘seismos’ and ‘graph’. ‘Seismos’ means earthquake and ‘graph’ means writing which together means writing of earthquake.
So from the above discussion, we can conclude that option (D) is the correct option.
Note: 1. Lightning- The intensity of lightning is measured using the energy of the lightning. Also, the size of a lightning bolt is also measured. Ebert spectrometer is a device used to measure the spectral characteristic of lightning.
2. Strength of wind- An anemometer is used to measure the strength of the wind. It looks like a wind vane but measures the strength of wind instead of the direction.
3. Temperature- To measure temperature we use a thermometer. There are various types of thermometer.
Complete step by step solution:
![seo images](https://www.vedantu.com/question-sets/d2618073-1524-4ef0-9007-3b6c3f60cbd825025000929444200.png)
The above image represents a seismograph. A seismograph or a seismometer is a device used to detect an earthquake. It also measures the intensity of the vibrations produced during an earthquake. It has a mass attached to the base which is fixed. Whenever an earthquake starts, the base moves and the mass does not. The motion of the base with respect to the mass is commonly transformed into an electrical voltage which is recorded on paper, magnetic tape, or any recording medium which is being used. The motion so recorded on the measuring medium is then converted into the required intensity of the earthquake.
The word seismograph is made up of two base words, ‘seismos’ and ‘graph’. ‘Seismos’ means earthquake and ‘graph’ means writing which together means writing of earthquake.
So from the above discussion, we can conclude that option (D) is the correct option.
Note: 1. Lightning- The intensity of lightning is measured using the energy of the lightning. Also, the size of a lightning bolt is also measured. Ebert spectrometer is a device used to measure the spectral characteristic of lightning.
2. Strength of wind- An anemometer is used to measure the strength of the wind. It looks like a wind vane but measures the strength of wind instead of the direction.
3. Temperature- To measure temperature we use a thermometer. There are various types of thermometer.
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