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Dennis_Churaev [7]
3 years ago
14

Red light has a wavelength of 500 nm. What is the frequency of red light?

Physics
1 answer:
snow_tiger [21]3 years ago
3 0

Answer:

0.6 \times 10 {}^{15}

Explanation:

By using relation,

Speed of light = frequency × wavelength (in m)

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Reflection off of a smooth surface like a mirror is an example of diffuse reflection.
Akimi4 [234]

Answer:

true

Explanation:

Reflection is when light bounces off an object. If the surface is smooth and shiny, like glass, water or polished metal, the light will reflect at the same angle as it hit the surface. ... This is called diffuse reflection. Diffuse reflection is when light hits an object and reflects in lots of different directions.

8 0
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How to solve 2A− B ?
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Explanation:

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5 0
3 years ago
Calculate the momentum of a 10kg bowling ball rolling at 2 m/s.
Helen [10]

Answer:

20 kg. m/s

Explanation:

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5 0
3 years ago
Which of the following statements is false?
vladimir1956 [14]

An excited atom can return to its ground state by absorbing electromagnetic radiation is false about the electromagnetic radiation.

Option B

<u>Explanation</u>:

In the scope of modern quantum theory, the term Electromagnetic radiation is identified as the movement of photons through space. Almost all the sources of energy that we utilize today such as coal, oil, etc are a product of electromagnetic radiation which was absorbed from the sun millions of years ago.

Various properties of electromagnetic radiations are a directly proportional relationship between the energy and the frequency, Inverse proportionality between frequency and the wavelength, etc. Hence, we can conclude that an "excited atom" can never return to its ground state by assimilating electromagnetic radiation and the 2nd statement is false.

4 0
3 years ago
A car driving at 20 m/s accelerates continuously 2m/s2​ ​ for 3 seconds. What is its final velocity
Lesechka [4]

Answer: V= u+ at

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t=time taken

V= 20 + 2*3

V= 26m/s

Explanation:

5 0
2 years ago
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