ENGINEERING PHYSICS - EXAMPLE 30.2 : The Planck-Einstein relation connects the p

ENGINEERING PHYSICS - EXAMPLE 30.2 : The Planck-Einstein relation connects the particulate photon energy E with its associated wave frequency f to produce E = hf. Let h to be the Planck constant. The frequency f, wavelength L and speed of light c are related by E = hc / L. With p denoting the linear momentum of a particle, the de Broglie wavelength L of the particle is given by L = h / p. (a) Find the equation of E as a function of p and c. (b) If E has a unit of electron-volt and f has a unit of 1 / second, then what is the unit of h?

Question Posted / kangchuentat

1 Answers
2129 Views
I also Faced
E-Mail Answers

ENGINEERING PHYSICS - EXAMPLE 30.2 : The Planck-Einstein relation connects the particulate photon en..

Answer / kangchuentat

ENGINEERING PHYSICS - ANSWER 30.2 : (a) Let first equation : E = hc / L, second equation : L = h / p. Substitute the second equation into first equation will produce E = hc / L = hc / (h / p) = pc. (b) E = hf then h = E / f. Dimensional analysis of h will produce E / f of electron-volt / (1 / second) or electron-volt-second. The answer is given by Kang Chuen Tat; PO Box 6263, Dandenong, Victoria VIC 3175, Australia; SMS +61405421706; chuentat@hotmail.com; http://kangchuentat.wordpress.com.

Is This Answer Correct ?

0 Yes

0 No

Post New Answer

More Chemical Engineering Interview Questions

how should i prepare for my placements.i am a student of chemical eng,final year,thapar university

0 Answers IOCL,

At what temperature is glass fused to steel in the making of glass-lined equipment?

0 Answers

pls send me model paper of NPCIL for executive trainee. and syllabus of executive trainee 2015.

0 Answers

What are the criteria’s involved in choosing mass balances for components?

0 Answers

COMPUTER PROGRAMMING FOR ENGINEERS - EXAMPLE 17.1 : By using Excel or other easiest programming package, explain how I, the integral of sin x dx from 0 to 3.142 could be approximated using random number. Find the exact value of I.

1 Answers

hai can anyone send me soft copy of o.p gupta or tell me downloading link please please at saify_0@hotmail.com

0 Answers

how much time will take 20000 liter water to cool from 80-30 0C ? Assume all parameters constant

1 Answers

In a crusher where is the energy provided to it is used up for?

0 Answers

Tell us about a time when you failed to meet a deadline. What were the repercussions?

4 Answers Bhavani Engineering Works, Caltex, Emirates, Holiday Inn, Regent, United States Seafoods,

QUANTUM COMPUTING - EXAMPLE 32.1 : In quantum computing, let the amplitude A = a | 0 > + b | 1 >, | a | | a | + | b | | b | = 1. Find the values of b if A = 0.8 | 0 > + b | 1 >.

1 Answers

Why are decomposition reactions called the opposite of combination reactions?

0 Answers

For a Vernier scale of representative fraction (RF) = 1 / 25, calculate the length of the scale for the reading up to 4 metres.

1 Answers

For more Chemical Engineering Interview Questions Click Here