10 Questions
What is the SI unit used to measure length?
Metre
Which of the following is not a standard unit in the SI system?
Calorie
In which year was the standard for the metre based on the wavelength of orange-red light adopted?
1960
What is the speed of light in vacuum according to the text?
$299792458$ m/s
What is the solid angle subtended by the moon at any point on Earth?
$7$ steradians
Which unit is used to measure time intervals in nanoseconds?
$ns$
What type of prefix symbol and units symbol constitute a new symbol for the unit?
$ ext{Prefix}$ and $ ext{Unit}$
How should m/s be written to avoid misinterpretation?
$ms^{-1}$
If 1 microsecond is equal to $10^{-6}s$, how many seconds are equivalent to 1 millisecond?
$10^{-3}s$
In indicating multiplication of two units, what symbol must be introduced according to the text?
_ (Space)
Learn about different systems of units like CGS, MKS, FPS, and the internationally accepted SI system for measuring quantities like length, time, and mass. Understand the significance of standard units in physics and engineering.
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