Flag Physical Chemistry> Neon gas is generally used in the sign bo...
question mark

Neon gas is generally used in the sign boards. If it emits strongly at 616 nm, calculate (a) the frequency of emission, (b) distance traveled by this radiation in 30 s (c) energy of quantum and (d) number of quanta present if it produces 2 J of energy.

Amrit , 8 Years ago
Grade 10
anser 1 Answers
Aditya Shrivastav

Last Activity: 8 Years ago

(a) just use the relationship between frequency and Wavelength . i.e. \Lambda \nu = c , put lambda = 616 x 10^-9 m and c= 3 x 10^8 m/s 
(b) all electromagnetic radiations travels at light of speed = 3 x 10^8 m/s  . you know the time and speed so you can find out the distance .
distance = speed x time . 
c) E = hc/\Lambda 
d) from c part of the question you know the energy of 1 quantum , just use the unitary method . 
   if E energy ( calculated in c part) is produced by one quatum 
  then 1 J energy will be produced by _________ quantums
 then 2 J energy will be produced by __________ quantums .

Provide a better Answer & Earn Cool Goodies

Enter text here...
star
LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

tv

Full Live Access

material

Study Material

removal

Live Doubts Solving

assignment

Daily Class Assignments


Ask a Doubt

Get your questions answered by the expert for free

Enter text here...