Well, one of the theories was that Charles darwin proved that theory evolution is real so that one theory.
Answer:
Explanation:
According to newtons second law of motion;
F = ma .... 1
Also the force acting aong the inclines is expressed as;
F = mgsintheta
m is the mass of the object
a is the acceleration
theta is angle of inclination
Equate 1 and 2
ma = mg sin theta
a = gsin(theta)
a = 9.8sin30
a = 9.8(0.5)
a = 4.9m/s²
Hence the acceleration of the ping pong is 4.9m/s²
Answer:
The wavelength will be "1.182 μm".
Explanation:
The given values are:
Wavelength
![\lambda=591 \ nm](https://tex.z-dn.net/?f=%5Clambda%3D591%20%5C%20nm)
or,
![=591\times 10^-9 \ m](https://tex.z-dn.net/?f=%3D591%5Ctimes%2010%5E-9%20%5C%20m)
Distance,
![d = 3.00 m](https://tex.z-dn.net/?f=d%20%3D%203.00%20m)
![n = 1](https://tex.z-dn.net/?f=n%20%3D%201)
Distance of fringe from center,
![y = 4.84 \ mm](https://tex.z-dn.net/?f=y%20%3D%204.84%20%5C%20mm)
We have to find the wavelength of first order dark fringe,
![\lambda = ?](https://tex.z-dn.net/?f=%5Clambda%20%3D%20%3F)
As we know,
⇒ ![y_{bright} =\frac{1\times \lambda\times L}{d}](https://tex.z-dn.net/?f=y_%7Bbright%7D%20%3D%5Cfrac%7B1%5Ctimes%20%5Clambda%5Ctimes%20L%7D%7Bd%7D)
On putting the given values in the formula, we get
On applying the cross multiplication, we get
![\lambda = \frac{0.00484\times 000036632}{0.5\times 3}](https://tex.z-dn.net/?f=%5Clambda%20%3D%20%5Cfrac%7B0.00484%5Ctimes%20000036632%7D%7B0.5%5Ctimes%203%7D)
![=1182\times 10^{-9}](https://tex.z-dn.net/?f=%3D1182%5Ctimes%2010%5E%7B-9%7D)
or,