The correct one is gamma rays. Lets go over them one by one.
Gamma rays are rays that arise from gamma decay, a type of radioactive decay. Often, after another decay, the nucleus is still unstable and it gives off energy in the form of gamma rays to stabilize itself. Hence, gamma rays have nothing to do with the electron structure, only with the nucleus of the atom.
X-rays are the product of accelerating electrons, hence only specific atoms can emit a specific energy of X-rays; similarly for the photoelectric phenomenon, the energy which is needed for photoelectrons to be created depends on the electron structure of the atom (in both cases, it is important to see how strong the bond between electron and atom is).
Finally, spectral lines differ depending on the electron structure of the atoms since electrons with different energies absorb different frequencies of light.
Scalar quantities have only magnitude. example temperature, distance.
Vector quantities have magnitude and direction.Example force, velocity.
You can say "I applied a force p\of 3 newtons to the left" but you can't say I added 32 Fahrenheit to the left
The wave characteristic that is the same for both waves is wavelength.
- Two waves with the same frequency will also have the same wavelength, amplitude, speed, and period. When two waves are travelling at the same frequency, it denotes that their duration and amplitude are also the same.
- When two waves of the same frequency and amplitude interfere constructively, their peaks and troughs align as shown in diagram A above. As a result, the original waves' amplitude is doubled, resulting in a sound wave that is twice as loud.
Thus, Equal frequencies are shared by two waves moving through the same region in the same direction.
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366J. Energy is conserved and is transformed from completely potential energy at the top to completely kinetic at the bottom.
Answer:
under
Explanation:
We know that F = ma,
or, a = F/m
or, a = 120/30 (because, Force = 120 N and mass = 30 kg)
or a = 4m/s^2
Hence, the acceleration of the object is 4 meter per second squared.