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Space in between atoms
I would like to know how we can verify the space / the gap in between the atoms is mostly devoid of matter or vacuum by doing an experiment.
Note: I am not talking about the structure of an atom (Rutherford experiment), I am asking the space in between the atoms...
Re: Collision of Photons
I do agree with you. However, what I want to make here is that if red light mixes with green light, yellow light will be produced. What does it imply? From my point of view, it implies that photon of red light (E1 = hf1) mixes with photon of green light (E2 = hf2) to...
Collision of Photons
I would like to know the answer of the following question: -
Can two photons of different energies collide together to form a new photon with the energy equals to the sum of individual photon i.e. E(new) = E(photon 1) + E(photon 2) ?
I would appreciate it if someone could...
stationary wave
Can someone tell me why the particles in the same loop of a stationary (or standing) wave vibrate with the same phase?
Back to basic, stationary wave is formed by the superposition of incident and reflected wave. Can I say it is formed by superposition of 2 progressive waves...
Re: Black hole
I need more expert advice. Refer to question 2, someone said it is possible and someone said it is impossible. Who is right?
Morever, some physics text books mention that if one could get into black hole without dying or tearing by the tremendous tidal force, one could go to the...
I would like to know the answers of the following questions:-
1. Could laws of physics be applicable in the black hole? If yes, to what extent ?
2. Could people (or astronauts) inside the schwarzschild radius communicate with other people by sending radio wave?
Please help! Thank you.
I would appreciate it if someone could tell me whether it is a physical change or chemicla change when monomer changes to polymer through the process of polymerisation. Most chemistry textbooks mentioned that it is a chemical change because the chemcial properties of polymer and monomer are...
I just want to know why electrons always keep spinning inside an atom? What initiate such spinning? If electrons do not spin, what happen?
Please help and give me an answer. Thank you.
I know basically energy can be transformable. However, is there any exception that energy cannot be transferred to the other type of energy? That is what I want to know. I seek your advice.
I just want to ask what are the differences between Uranium 235 and Uranium238? Why do nuclear plants preferably use U235 than that of U238? Please help. Thank you.
I would like to know how to measure the volume of an irregular object (e.g. mushroom, or spongy,or an unknown material) which naturally absorbs water. Initially I may think that we can use water displacement method by putting it into a measuring cylinder and measure how much water is displaced...
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