Physical Quantities and Measurements
It is an instrument used for viewing the objects moving rapidly with a periodic motion and to see them as if they were at rest.
Vernier
Stereoscope
Stroboscope
Repeater
Stroboscope
A stroboscope, also known as a strobe, is an instrument used to make a cyclically moving object appear to be slow-moving, or stationary. It consists of either a rotating disk with slots or holes or a lamp such as a flashtube which produces brief repetitive flashes of light.
Related posts
Quantities on basis of which other ones are expressed are calledA. derived quantities
B. physical quantities
C. base quantities
D. scalar quantities
The least count of the screw gauge is
A. 1 mm
B. 0.5 mm
C. 0.01 mm
D. 0.001 mm
10,000 m/sec is the speed of a
A. aero plane
B. rocket
C. satellite signal
D. car
By using prefixes, we can write 335 ร 10-8ย s as
A. 0.335 ยตs
B. 33.5 ยต
C. 335 ยตs
D. 3.35 ยตs
Kilo means in SI is one
A. thousand
B. hundred
C. ten
D. million
Non-zero digits are always
A. significant
B. non-significant
C. worthless
D. none of above
The unit of volume is
A. meter
B. meterยฒ
C. meterยณ
D. None of these
Leave a Reply