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प्रश्न
The wavelength of light is 589 nm. what is its wavelength in Å?
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उत्तर
Wavelength of light = 589 nm
1 angstrom = 0.1 nm
We have 589 nm
`589/0.1 = 5890` Angstroms
= 5890Å
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संबंधित प्रश्न
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Define the term pitch.
State the formula for calculating length if:
Number of vernier scale division coinciding with the main scale and number of division of main scale on the left-hand side of zero of vernier scale is known.
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A micrometre screw gauge has a positive zero error of 7 divisions, such that its main scale is marked in 1/2 mm and the circular scale has 100 divisions. The spindle of the screw advances by 1 division complete rotation.
If this screw gauge reading is 9 divisions on the main scale and 67 divisions on the circular scale for the diameter of a thin wire, calculate
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- L.C.
- Observed diameter
- Corrected diameter
What do you understand by the following term as applied to micrometre screw gauge?
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What do you understand by the following term as applied to micrometre screw gauge?
Thimble
Consider the following case where the zero of vernier scale and the zero of the main scale are clearly seen. If L.C. of the vernier calipers is 0.01 cm, write the zero error and zero correction of the following.

