What is msd vsd and how it is used plzzz answer
What is msd vsd and how it is used plzzz answer 6. V&'hich of the following is the most precise device ring length : (a) a vernier calliper with 20 divisions on the glidin scale, (b) a screw gauge of pitch 1 mm and 100 divisions the circular scale (c) an optical instrument that can measure length within a wavelength of visible light ? Ans. The device that has minimum least count will ' re precise for measuring length. (a) Least count of vernier callipers 19 1 20 20 1 1 = — x I mm = — cm = 0.005 cm. 20 200 (b) Least count of screw gauge Pitch No. of divisions on circular scale 1.0 mm 1 0.001 cm 100 -1000 (c) Least count of optical instrumgnt = Wavelength of visible (red) light = 6000 Å = 6000 x lo- cm 0.00006 cm. the most precise device for measuring len ;iven optical instrument.
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200000km
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#£3575............
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MSD STANDS FOR MAIN SCALE DIVISIONS WHERE AS VSD REFERS TO VERINIER SCALE DIVISIONS
Explanation:
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