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Dawn Of Modern Physics Set 5
Results
#1.
The Einstein mass-energy relationship is
E = mc
E = mc
E = m * c ^ 3
E = m * c ^ 3
E = m * c ^ 2
E = m * c ^ 2
E = m ^ 2 * c ^ 2
E = m ^ 2 * c ^ 2
#2.
When an electron combines with a positron, we get
One photon
One photon
Two photons
Two photons
Three photons
Three photons
Four photons
Four photons
#3.
Production of X-rays can be regarded as the reverse phenomenon of
Pair production
Pair production
Photoelectric effect
Photoelectric effect
Compton effect
Compton effect
Annihilation of matter
Annihilation of matter
#4.
The radius of atom is the order of
10 ^ 10 * m
10 ^ 10 * m
10 ^ - 10 * m
10 ^ - 10 * m
10 ^ - 14 * m
10 ^ - 14 * m
10 ^ 14 * m
10 ^ 14 * m
#5.
In 1905, the special theory of relativity was proposed by
#6.
Neutron was discovered in 1932 by
Bohr
Bohr
Chadwick
Chadwick
Dirac
Dirac
Fermi
Fermi
#7.
The rest mass of photon is
#8.
A positron is a particle having
Mass equal to electron
Mass equal to electron
Charge equal to electron
Charge equal to electron
Equal mass but opposite charge to electron
Equal mass but opposite charge to electron
Mass equal to proton
Mass equal to proton
#9.
In Compton scattering, the Compton shift A will be equal to Compton wavelength if the scattering angle is
0°
0°
45
45
60°
60°
90°
90°
#10.
Unit of plank's constant is
volt
volt
1s
1s
1s ^ - 1
1s ^ - 1
eV
eV
Finish
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