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Dawn Of Modern Physics Set 4
Results
#1.
Which one is most energetic?
y-rays
y-rays
X-rays
X-rays
Ultraviolet rays
Ultraviolet rays
Visible light
Visible light
#2.
The total amount of energy radiated per unit orifice area of cavity radiator per unit time is directly proportional to
T
T
T ^ 2
T ^ 2
T^ 3
T^ 3
T ^ 4
T ^ 4
#3.
Plank's constant h has the same units as that of
Linear momentum
Linear momentum
Angular momentum
Angular momentum
Torque
Torque
Power
Power
#4.
A maximum Compton shift in the wavelength of scattered photon will be occur at
θ= 60°
θ= 60°
θ= 45
θ= 45
θ= 90°
θ= 90°
θ= 180
θ= 180
#5.
The Davisson and Germer experiment indicates
Interference
Interference
Polarization
Polarization
Electron diffraction
Electron diffraction
Refraction
Refraction
#6.
Photoelectric effect was explained by
Hertz
Hertz
Einstein
Einstein
Rutherford
Rutherford
Bohr
Bohr
#7.
All motions are
Absolute
Absolute
Uniform
Uniform
Relative
Relative
Variable
Variable
#8.
The rest mass energy of an electron in MeV is equal to
0.511
0.511
0.611
0.611
0.902
0.902
1.02
1.02
#9.
An observer shoots parallel to a meter stick at very high speed (relativistic) and finds that the length of meter stick is
Greater than one meter
Greater than one meter
Less than one meter
Less than one meter
One meter
One meter
None of these
None of these
#10.
Linear momentum of a photon is
Zero
Zero
hf^2/c
hf^2/c
hf/c
hf/c
c^2/hf
c^2/hf
Finish
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