Which of electromagnetic radiation has the shortest wavelength?
1 answer:
Answer:
The electromagnetic radiation with the shortest wavelength are gamma rays.
Explanation:
Photons are the particles that constitute light and its kwnow that lights propagates as electromagnetic waves.
The electromagnetic spectrum is the distribution of radiation due to the different frequencies at which it radiates and its different intensities, that radiation is formed by electromagnetic waves, which are transverse waves formed by an electric field and a magnetic field perpendicular to it.
The distribution of the radiation in the electromagnetic spectrum can also be given in wavelengths, but it is more frequent to work with it at frequencies, the highest being that of gamma rays, followed by X-rays, ultraviolet rays and the visible region , and those of lower frequencies, which correspond to infrared, microwave and radio waves.
The energy given for each wavelength can be found by means of the following equation.
(1)
but
(2)
Where E is the energy, h is the planck's constant and is the wavelength.
So, it can be see in equation 2 that when the wavelength increases the energy decreases (inversely proportional).
Hence, the electromagnetic radiation with the shortest wavelength are gamma rays.
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Answer:
a) 23 m/s
Explanation:
- Assuming no external forces acting during the collision, total momentum must be conserved, as follows:
- The initial momentum p₀, can be written as follows:
- The final momentum pf, can be written as follows:
- Since (2) and (3) are equal each other, we can solve for the only unknown that remains, v₂₀, as follows:
- This means that the 2.0-kg object was moving at 23 m/s in a direction opposite to the 6.0-kg object, so its initial speed, before the collision, was 23.0 m/s.