Question : Heinrich Rudolph Hertz laid the foundation for the future development of radio, telephone and telegraph. The SI unit of ____________ was named as "hertz" in his honour.
Option 1: frequency
Option 2: heat
Option 3: light
Option 4: sound
Correct Answer: frequency
Solution : The correct option is frequency.
The future advancement of the telephone, telegraph and radio was made possible by Heinrich Rudolph Hertz. He made major contributions, and as a result, the hertz (Hz) became the unit of frequency in the International System of Units (SI). When calculating the frequency of periodic events, such as electromagnetic waves, the hertz unit of measurement is utilised.
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Question : Which of the following is the unit of perceived loudness of sound?
Option 1: Decibel
Option 2: Sone
Option 3: Hertz
Option 4: Phon
Question : Hertz is a unit for measuring.
Option 1: Intensity of waves
Option 2: Frequency of waves
Option 3: Wavelength
Option 4: Clarity of waves
Question : When did Heinrich Hertz discover the photoelectric effect and observe that shining ultraviolet light on the electrodes caused a change in voltage between them?
Option 1: 1916
Option 2: 1902
Option 3: 1990
Option 4: 1887
Question : The infrastructure development project to promote "port-led development" in India has been named:
Option 1: Sagarmala
Option 2: Sagarnaman
Option 3: Bharatmala
Option 4: Sagarmatha
Question : Which among the following measures the same quantity as that is measured by the SI unit "Pascal"?
Option 1: Watt
Option 2: Torr
Option 3: Newton
Option 4: Joule
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