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zlopas [31]
2 years ago
6

La) What is meant by the term Basic Quantities.​

Physics
1 answer:
castortr0y [4]2 years ago
5 0

Answer:

A basic quantity is basically the physical quantity that can not be defined in terms of other quantities.

Explanation:

A basic quantity is basically the physical quantity that can not be defined in terms of other quantities.

Some of the names of the basic quantities include:

  1. Mass, denoted by the symbol 'm', with S.I. unit 'kg'
  2. Length, denoted by symbol 'l', with S.I. unit 'm'
  3. Time, denoted by symbol 't', with S.I. unit 's'
  4. Current, denoted by 'I', with S.I. unit 's' 'A'
  5. Temperature, denoted by 'T', with S.I. unit 'K'
  6. Amount of substance, denoted by 'n', with S.I. unit 'mol'
  7. Luminous Intensity, denoted by 'Iv', with S.I. unit 'cd'

  • A basic quantity is chosen arbitrarily.
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The loudness l of a sound, measured in decibels, is given by l=10log10r, where r is the sound's relative intensity. suppose one
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Answer

given,                              

I is the loudness of sound

I = 10 Log₁₀ r                  

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at when relative intensity is 10⁶        

I = 60 dB                                                  

how much louder when 100 people would be talking together

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The figure shows an arrangement in which four disks are suspended by cords. The longer, top cord loops over a frictionless pulle
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