A wave will "break" because ________. a wave will "break" because ________. the sediment load of water is greater near the shore
1 answer:
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Answer:2 m right
Explanation:
Given
First child is sitting 1 m left from Pivot point
Mass of second child is half of first
Let mass of first child be m
Second child
In order to balance see saw torque must be zero about pivot
x=2 m right from pivot point
Answer:
The angle of diffraction are 67.75 deg and 53.57 deg.
Explanation:
Given:
Davisson and Germer experiment with nickel target for electrons bombarding.
Voltages : and
We have to find the angles that is and
.
Concept:
- Davison Germer experiment is based on de Broglie hypothesis where it says matter has both wave and particle nature.
- When electrons get reflected from the surface of a metal target with an atomic spacing of
, they form diffraction patterns.
- The positions of diffraction maxima are given by
.
- An atomic spacing is
, when the principal maximum corresponds to n=1
- The wavelength is
, and
.
Solution:
Finding the wavelength at .
⇒
⇒ nm
Plugging the values of wavelength.
⇒
⇒
⇒ degrees.
Now
For for the electrons with energy ,
the wavelength is.
⇒ nm
And
⇒ degrees.
So,
The angles of diffraction maxima are 67.75 deg and 53.57 deg.