-- If the frequency of a wave is too high for our eyes to detect it ... but not <u>too too</u> high ... we call it an <em>ultraviolet </em>wave.
-- If the wave's frequency is even higher than that, we call it an <em>X-ray</em> wave.
-- If the wave's frequency is even higher than that, we call it a <em>Gamma Ray </em>wave.
Answer:
Explanation:
Human eye can detect light of wavelength between 380 to 700 nm
This wavelength region is called visible region of light
we know
velocity=frequency\times wavelength
thus for same velocity of light wavelength is inversely proportional to frequency
for shortest wavelength i.e.
frequency is
<span>Ocean waves is a promising form of energy to harvest. </span>Wave energy<span> is an endless source of </span>energy<span>, which will contribute to the renewable energy </span><span>that might replace the fossils and nuclear fuels. </span>It can generate electricity around the clock, eliminating the need for energy-storage systems. <span>They are in unlimited quantity and they</span><span> can give a reasonable supply of energy </span>that will last forever. Not only that, Our using them for energy is not going to shorten their life span.
Answer:
Explanation:
Given that
d= 1.5 in ( 1 in = 0.0254 m)
d= 0.0381 m
P= 75 hp ( 1 hp = 745.7 W)
P= 55927.5 W
N= 1800 rpm
We know that power P is given as
T=Torque
N=Speed
T=296.85 N.m
The maximum shear stress is given as
We know that 1 MPa =0.145 ksi