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3 years ago

12

The difference between a red shift and a blue shift has to do with wavelength frequency. T or F

1 answer:

ale4655 [162]3 years ago

5 0

Answer:

Its True

Explanation:

The difference between a red shift and a blue shift is as follows;

Red shift: In the red shift, light changes as the object in space (such as star or galaxies) moves away from us then the light is shifted to red end.The light is shifted to a shorter frequency. In this case, the light is shifted to a longer wavelength.

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A light beam travels at 1.94×108 in quartz. The wavelength of the light in quartz is 355 .Part AWhat is the index of refraction

Alja [10]

A) 1.55

The speed of light in a medium is given by:

$v=\frac{c}{n}$

where

$c=3\cdot 10^8 m/s$ is the speed of light in a vacuum

n is the refractive index of the material

In this problem, the speed of light in quartz is

$v=1.94\cdot 10^8 m/s$

So we can re-arrange the previous formula to find n, the index of refraction of quartz:

$n=\frac{c}{v}=\frac{3\cdot 10^8 m/s}{1.94\cdot 10^8 m/s}=1.55$

B) 550.3 nm

The relationship between the wavelength of the light in air and in quartz is

$\lambda=\frac{\lambda_0}{n}$

where

$\lambda$ is the wavelenght in quartz

$\lambda_0$ is the wavelength in air

n is the refractive index

For the light in this problem, we have

$\lambda=355 nm\\n=1.55$

Therefore, we can re-arrange the equation to find $\lambda_0$ , the wavelength in air:

$\lambda_0 = n\lambda=(1.55)(355 nm)=550.3 nm$

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4 years ago

What are 3 subatomic particles of an atom?

Vesnalui [34]

Protons, neutrons, and electrons<span> are the three main subatomic particles found in an atom.</span>

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3 years ago

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How do waves interact with our senses?

k0ka [10]

Answer:

well sound waves interact with our ears and light interacts with our vision

Explanation:

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Assertion(A):The distance moved by an object in unit time is called its speed. Reason (R):Faster vehicles have higher speeds. i)

ikadub [295]

Answer:

it's ii) R is correct while A is incorrect

Explanation:

cuz, both statements are correct but the reason is not the correct reason for the assertion,

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A simple machine can change the direction of a force.<br> O True<br> O False

tino4ka555 [31]

☁️ Answer ☁️

annyeonghaseyo!

Your answer is:

True.

Several simple machines change the direction of the applied force. These include lever, fulcrum and the pulley.

Hope it helps.

Have a nice day hyung/noona!~ ￣▽￣❤️

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3 years ago