Given below are some famous numbers associated with electromagnetic ra

1.	Given below are some famous numbers associated with electromagnetic radiations in different contexts in physics. State the part of the electromagnetic spectrum to which each belongs.i. 21 cm (wavelength emitted by atomic hydrogen in interstellar space). ii. 1057 MHz (frequency of radiation arising from two close energy levels in hydrogen known as Lamb Shift). iii. 5890 A – 5896 A [double lines of sodium]
Answer» i. Radio waves (short wavelength or high frequency end) ii. Radio waves (short wavelength or high frequency end) iii. Visible region (yellow light)

Given below are some famous numbers associated with electromagnetic radiations in different contexts in physics. State the part of the electromagnetic spectrum to which each belongs.i. 21 cm (wavelength emitted by atomic hydrogen in interstellar space). ii. 1057 MHz (frequency of radiation arising from two close energy levels in hydrogen known as Lamb Shift). iii. 5890 A – 5896 A [double lines of sodium]

Answer»

i. Radio waves (short wavelength or high frequency end)

ii. Radio waves (short wavelength or high frequency end)

iii. Visible region (yellow light)