Answer: (Next time put the Image but I know what u talkin bout)
wave changes its path from its initial direction so this phenomenon is known as Refraction of wave
Explanation:
When wave travels from one medium to other medium the due to change in the speed of the wave propagation it deviates from its initial path.
The deviation of the wave from its initial path is known as refraction of wave
Here we can see that wave incident on medium 1 with some angle with the boundary
Then it enters into other medium and then travels in other direction
So here wave changes its path from its initial direction so this phenomenon is known as Refraction of wave
Answer:
The energy transformations that occur is Mechanical → electrical → light.
Explanation:
- When the water falls through the dam the gravitational potential energy of water is transformed into kinetic energy.
- This energy rotates the turbine (mechanical energy) connected to a generator.
- Now this mechanical energy is converted into electrical form through the process of electromagnetic induction (when a conductor cuts the magnetic field, electricity is produced).
- The electricity thus produced is driven to different offices and houses through wires.
- By drawing this current we light our homes and offices.
Answer:
Explanation:
Given that the grand stone has initial angular velocity of
w(ini)= 6rad/
And it has a final angular velocity of
w(fin)=12.20rad/sec
Time taken is t=16s
Using equation of angular motion
To get angular acceleration (α)
w(fin)=w(ini)+αt
12.20=6+16α
16α=12.20-6
16α=6.2
α=6.2/16
α=0.3875rad/sec²
The angular acceleration is 0.39rad/s²
Angle that he turn using
w(fin)²=w(ini)²+2αθ
12.2²=6²+2×0.3875θ
12.2²-6²=0.775θ
0.775θ=112.84
Then, θ=112.84/0.775
θ=145.6radian
The angular displacement is 145.6rad
Answer:
Explanation:
A simple light microscope uses light for imaging of objects where as a transmission electron microscope uses a monochromatic beam of electrons.
This beam is passed by a magnetic field which is very strong and thus act as a lens.
Its resolution of very high which is about 0.2 nanometers because of the separation between two atoms.
Because of this reason its resolution is about 1000 times greater than light microscope.
Answer:
The answer to your question is below
Explanation:
Data
m = 3 kg
vo = 6 m/s
vf = -8 m/s
Process
a= Initial kinetic energy
Eko = (1/2)mv²
Eko = (1/2)(3)(6)²
Eko = 54 J
b) Final kinetic energy
Eko = (1/2)(3)(-8)²
Eko = 96 J
c) Initial momentum
pi = (3)(6)
pi = 18 kg m/s
d) Final momentum
pf = (3)(-8)
pf = -24 kg m/s
