Photon Reflection & Transmission: Calculating Probabilities

AI Thread Summary
When a photon hits a beam-splitter, it has a 70% probability of being reflected and a 30% probability of being transmitted, as stated in the problem. To answer the question, one must recognize that these percentages directly represent the probabilities of reflection and transmission. The confusion may arise from interpreting the problem, but the values provided are straightforward. Therefore, the probability of reflection is indeed 70%, while the probability of transmission is 30%. Understanding these basic principles of photon behavior at beam-splitters is essential for solving related problems.
kingyof2thejring
Messages
82
Reaction score
0
qw: A photon is incident on a beam-splitter. At high light intensities, the beam-splitter is known to transmit 30% of the incident light, and reflects 70% of the incident light. Calculate the probability that the photon is refected, and the probability that the photon is transmitted.
how do i answer this question? What do i need to know?
 
Physics news on Phys.org
I want to say the answer is given in the problem, so I'm guessing I'm reading it wrong when I conclude the probability it's reflected is 70%
 
Thread 'Collision of a bullet on a rod-string system: query'

Thread 'Collision of a bullet on a rod-string system: query'

In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
View full post »
Thread 'A cylinder connected to a hanged mass'

Thread 'A cylinder connected to a hanged mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
View full post »

Similar threads

Final momentum of box with reflective interior hit by ideal laser
Replies
4
Views
877
Correct statement about light transmitted and reflected by windscreen
Replies
11
Views
1K
Total Internal Reflection and Transmitted Wavelength
Replies
1
Views
787
Reflection probability in Quantum Mechanics
Replies
2
Views
571
Thin-film interference: transmission & reflection of colors
Replies
6
Views
4K
Calculating attenuation necessary to reduce number of photons
Replies
8
Views
2K
Question about reflectivity and maximization of energy reflected
Replies
1
Views
1K
Why does a traveling wave pulse get distorted?
Replies
17
Views
2K
EM Wave Reflection and Transmission Between 3 Materials
Replies
12
Views
2K
Concept about photoelectric effect
Replies
17
Views
1K

Hot Threads

Recent Insights

Back
Top