Answer:
<em>specific</em><em> </em><em>heat</em><em> </em><em>capacity</em><em> </em><em>(</em><em>c</em><em>)</em><em> </em><em>=</em>107.2J/kg K
The wavelength of the light ray with the given frequency is 4.05 × 10⁴nm.
Given the data in the question;
- Frequency of the light ray;

- Wavelength;

<h3>Wavelength</h3>
Wavelength can be simply defined as the spatial period of a periodic wave. When the shapes of waves are repeated, the distance over which they are repeated is called wavelength. Wavelength is expressed as;

Where
is wavelength, f is frequency and c is speed of light(
)
We substitute our values into the expression above to determine the wavelength of the light ray.

Therefore, the wavelength of the light ray with the given frequency is 4.05 × 10⁴nm.
Learn more about wavelength: brainly.com/question/16776907
Answer:
Explanation:
An Ideal Machine is a machine which gives 100 percent efficieny that is entire input energy is converted into output energy.
however this is not possible as some energy is lost due to friction, imperfect components and all. Therefore no machine is Ideal machine.