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3 years ago

Light of a certain color has a wavelength of 4.8 x 10-7m. Determine the frequency and color of the light wave.

Physics

1 answer:

cluponka [151]3 years ago

3 0

The frequency is $6.3\cdot 10^{14}$ and it is blue light

Explanation:

The relationship between the speed, the frequency and the wavelength of an electromagnetic wave is given by:

$c=f \lambda$

where

$c=3.0\cdot 10^8 m/s$ is the speed of light

f is the frequency of the wave

$\lambda$ is its wavelength

In this problem, the wavelength of the wave is

$\lambda = 4.8\cdot 10^{-7} m$

Therefore, its frequency is:

$f=\frac{c}{\lambda}=\frac{3.0\cdot 10^8}{4.8\cdot 10^{-7}}=6.3\cdot 10^{14} Hz$

The wavelength of this wave is

$\lambda = 480 nm$

And by looking at the table of the wavelengths of the colors, we notice that this corresponds to the blue light, which has a range of wavelength of

[450 - 495] nm

Learn more about waves and electromagnetic waves here:

brainly.com/question/5354733

brainly.com/question/9077368

brainly.com/question/9184100

brainly.com/question/12450147

#LearnwithBrainly

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3 years ago

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Answer:

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Explanation:

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3 years ago

if you transfer equal amounts of geat to 1kg of water and 1kg of cooper, which will change tempature more

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3 years ago

Suppose a treadmill has an average acceleration of 4.7x10^-3 m/s. a)how much does its speed change after 5min? b)if the treadmil

Mars2501 [29]

Answer:

a)Change in the speed = 1.41 m/s

b)The final speed will be 3.11 m/s

Explanation:

Given that

Acceleration ,a= 4.7 x 10⁻³ m/s²

We know that

v= u + a t

v=final speed ,u=initial speed

t= time ,a= acceleration

Change in the speed

v- u = a t

t= 5 min = 5 x 60 s = 300 s

v- u = 4.7 x 10⁻³ x 5 x 60 m/s

v-u = 1.41 m/s

Change in the speed = 1.41 m/s

Given that

u= 1.7 m/s

v-u = 1.41 m/s

v= 1.7 + 1.41 m/s

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3 years ago

A proton moves with a velocity of v with arrow = (3î − 5ĵ + k) m/s in a region in which the magnetic field is B with arrow = (î

Allisa [31]

Answer:

The magnitude of the magnetic force this particle experiences is $2.6\times10^{-9}\ N$ .

Explanation:

Given that,

Velocity v= (3i-5j+k) m/s

Magnetic field B=(i+2j-k) T

We need to calculate the value $\vec{v}\times\vec{B}$

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We need to calculate the magnitude of the magnetic force this particle experiences

Using formula of magnetic force

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Put the value into the formula

$\vec{F}=1.6\times10^{-19}\times(3i+4j+11k)$

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Hence, The magnitude of the magnetic force this particle experiences is $2.6\times10^{-9}\ N$ .

7 0

3 years ago