Advertisements
Advertisements
प्रश्न
The wavelength of light of a particular colour is 5800 Å.
Express it in metre.
उत्तर
As we know, 1 m = 1010 Å
Given, Wavelength of light = 5800 Å
Substituting the value of wavelength in the relation above, we get,
1010 Å = 1 m
1 Å = 10-10 m
∴ 5800 Å = 5800 × 10-10 m
∴ 5800 Å = 5.8 × 10-7 m
Hence, wavelength of 5800 Å in m = 5.8 × 10 -7m.
APPEARS IN
संबंधित प्रश्न
The wavelength of light is 589 nm. what is its wavelength in Å?
When is a vernier Callipers said to be free from zero error?
The diameter of a thin wire can be measured by
Figure shows a screw gauge in which circular scale has 200 divisions. Calculate the least count and radius of the wire.
What do you understand by the following term as applied to micrometre screw gauge?
Baseline
A measuring cylinder is filled with water up to a level of 30 ml. A solid body is immersed in it so that the level of water rises to 37 ml. Now the solid body is tied with a cork and then immersed in water so that the water level rises to 40 ml. Find the volume of the solid body and the cork.
Name the measuring employed to measure the thickness of a paper.
State whether the following statement is true or false by writing T/F against it.
A metre scale can measure a length of 6.346 cm.
An instrument that is used to measure the diameter of a cricket ball is ______.