Advertisements
Advertisements
Question
The wavelength of light of a particular colour is 5800 Å.
Express it in nanometre.
Solution
As we know, 1 nm = 10 Å
Given, Wavelength of light of particular colour = 5800 Å
Substituting the value of wavelength in the relation above, we get,
10 Å = 1 nm
1 Å = `1/10` nm
∴ 5800 Å = `1/10` × 5800 nm
∴ 5800 Å = 580 nm
Hence, wavelength of 5800 Å in nm = 580 nm.
APPEARS IN
RELATED QUESTIONS
What is meant by zero error of vernier callipers ? How is it determined? Draw neat diagrams to explain it. How is it taken in account to get the correct measurement?
Describe in steps, how would you use a vernier callipers to measure the length of a small rod ?
Describe the procedure to measure the diameter of a wire with the help of a screw gauge.
(a) A vernier scale has 10 divisions. It slides over the main scale, whose pitch is 1.0 mm. If the number of divisions on the left hand of zero of the vernier scale on the main scale is 56 and the 8th vernier scale division coincides with the main scale, calculate the length in centimetres.
(b) If the above instrument has a negative error of 0.07 cm, calculate the corrected length.
What is the need for measuring length with vernier callipers?
Define the least count of an instrument.
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.
