Answer:
v > ii > iii > i > iv
Explanation:
The speed of light does not depend on the wavelength of light rather the medium through which it passes through.
v) The speed of light in a vacuum is maximum = 300000 km/s
ii) The speed of light in air = 2999910.026 km/s
iii) The speed of light in water = 2255639.097 km/s
i) The speed of light in glass = 1973684.210 km/s
iv) The speed of light in diamonds = 1239669.421 km/s
Hence the ranking will be
v > ii > iii > i > iv
<span>C. waves can only interfere destructively. </span>
I believe the answer is <span>A</span>.
Answer:
4.78 m/s^2
Explanation:
A)From he FBD
we can write
Tcosθ= mg
Tsinθ= ma
dividing we get tanθ= a/g
a= g tanθ
a= 9.81 tan26°= 4.78 m/s^2
