The red light emitted by a helium–neon laser has a wavelength of 632.8 nm. What is the frequency of the light waves?

Physics

1 answer:

Monica [59]3 years ago

5 0

f = 4.74 × 10 ^14 Hz

hope this helps:)

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"what is the period of one vibration of this tone?"

Viktor [21]

The full question is:
On a keyboard, you strike middle C, whose frequency is 256 Hz. What is the period of one vibration of this tone?
The period of a vibration is the time it takes for the particle to make one full oscillation. Frequency is by definition number of full oscillations per unit of time.
When the frequency is expressed in Hz that unit of time is one second.
So there is the following relation between frequency and period:
$T=\frac{1}{f}$
When we plug in the numbers we get:
$T=\frac{1}{256}=0.0039$s$

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3 years ago

Every summer I drive to Pennsylvania. It is 895 km to get there. If I average 100 km/hr, how much time will I spend driving?

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Answer the time you bee spending driving iss 795 because 895-795=100

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sergiy2304 [10]

We are given an electromagnetic wave with a frequency of 5.09 x 10^14 Hz and travelling through a transparent medium. If the medium was vacuum, the speed of the wave would be equal to the speed of light. Otherwise, the main factor that would determine the speed of the wave is its wavelength.

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The magnetic strips on credit cards can become demagnetized. What type of magnet are they?

Damm [24]

I think you're fishing for "temporary magnet" or something like that,
but I don't agree with it.

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But that doesn't mean that they stay magnetic no matter WHAT you do
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A scientist is designing a device that will mimic Earth's atmosphere by

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Answer:

1. Ultraviolet light (UV)

2. X-rays

3. Gamma-rays

Explanation:

Though there are different types of energy or electromagnetic waves with varying wavelengths, including the likes of Gamma X-rays, ultraviolet light, visible light, infrared radiation, and microwave radiation.

What is more certain is that the atmosphere blocked the high-energy waves from getting to the earth surface or biosphere such as Ultraviolet light (UV), X-rays and Gamma-rays

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