Answer:
I would say that is false. Science can only be perfect after at least some sort of scientific communication and interaction.
Answer:
Explanation:
The work function of the metal corresponds to the minimum energy needed to extract a photoelectron from the metal. In this case, it is:
So, the energy of the incoming photon hitting on the metal must be at least equal to this value.
The energy of a photon is given by
where
h is the Planck's constant
c is the speed of light
is the wavelength of the photon
Using and solving for , we find the maximum wavelength of the radiation that will eject electrons from the metal:
And since
1 angstrom =
The wavelength in angstroms is
Answer:
(a) 3.33 x 10^-7 T along Y axis
(b) 6 x 10^14 Hz
(c) 3.768 x 10^15 rad/s
(d) 2 x 10^6 m^-1
Explanation:
Wavelength = 500 nm = 500 x 10^-9 m
Electric Field, E = 100 i (along + X axis)
Wave is in +Z axis
So, the magnetic field is in + Y axis.
(a) c = E / B
B = E / c = 100 / (3 x 10^8) = 3.33 x 10^-7 T along Y axis
(b) Frequency = wave speed / wavelength = ( 3 x 10^8) / (500 x 10^-9)
frequency = 6 x 10^14 Hz
(c) w = 2 x 3.14 x f = 2 x 3.14 x 6 x 10^14 = 3.768 x 10^15 rad/s
(d) k = reciprocal of wavelength = 1 / (500 x 10^-9) = 2 x 10^6 m^-1
Answer:
idk butttttt.... i had fun talking to u yesterday and the other conversation is getting a little....uhm....how do i say this.....weird.....everyone is friends now¯\_('-')_/¯
Explanation:
Answer:
A
The atomic mass tells us how many protons and electrons an atom has.
The answer is A.