an emission spectrum that consists of a continuum of wavelengths.
11) Continuous spectrum is produced by
Answer is:
incandescent lamp
Explanation:
Related Atoms and Nuclei MCQ with Answers
Answer is:
Only a few colors in the form of isolated sharp parallel lines generally produced by heated gases
Explanation:
a spectrum of the electromagnetic radiation emitted by a source.
Answer is:
If we pass white (continuous-spectrum) light through a cool gas
Explanation:
a spectrum of electromagnetic radiation transmitted through a substance, showing dark lines or bands due to absorption at specific wavelengths.
Answer is:
It needs to be in glowing gaseous form
Explanation:
To produce an emission spectrum of hydrogen It needs to be in glowing gaseous form
Answer is:
41290
Explanation:
a) After 1600yrs - 0.5 decayed, 0.5 left After 3200 yrs - there's 0.5 left, so you need to take half of that, i.e. a further 0.25 of the initial sample would have decayed. so total decayed = 0.75, total undecayed = 0.25 After 4800 - half of the 0.25 left will decayed, i.e. a further 0.125 of initial sample will decay. so total decayed = 0.75 + 0.125 = 0.875 of initial sample = 7/8 b) 6400 yrs is a further half life (from part a). After 4800 yrs, 1/8 is left, so after another half life, 1/16 will be left