Chemistry Objective Online Exam Quiz
Chemistry Objective GK Quiz. Question and Answers related to Chemistry Objective. MCQ (Multiple Choice Questions with answers about Chemistry Objective
If the uncertainties in position and momentum are equal, then the uncertainty in position is given by ____
Options
A : ?h/4?
B : ?h4?
C : ?h/4
D : ?h/?
An object has a mass of 6 kg and velocity of 10 m/s. The speed is measured with 5% accuracy, then find out ?x in m.
Options
A : 0.12676 x 10-34
B : 0.1566 x 10-34
C : 0.176 x 10-34
D : 0.276 x 10-34
If the kinetic energy of an electron is 5J. Find out its wavelength.
Options
A : 0.313 x 1015 m/s
B : 3.013 x 1015 m/s
C : 3.310 x 1015 m/s
D : 3.313 x 1015 m/s
Mass of a photon is given by 3.313 x 10-34 kg. Find it’s wavelength.
Options
A : 0.67A°
B : 0.67nm
C : 0.37A°
D : 1.67A°
A ball of mass 0.5kg is moving with velocity 6.626 m/s. What’s the wavelength of that ball?
Options
A : 1 x 10-34 m
B : 2 x 10-34 m
C : 2 x 10-32 m
D : 2 x 10-3 m
The uncertainty of a ball is given by 0.5A°. Then calculate the uncertainty in momentum.
Options
A : 2.055 x 10-24 kgm/s
B : 1.015 x 10-24 kgm/s
C : 1.055 x 10-24 kgm/s
D : 1.095 x 10-24 kgm/s
Who found out about dual behavior of a matter?
Options
A : De Broglie
B : Bohr
C : Rutherford
D : Thomson
As per Heisenberg’s principle of uncertainty, the relation between relative momentum and relative position is __________
Options
A : independent
B : equal
C : directly proportional
D : inversely proportional
Determining the exact position and velocity of an electron is impossible at a time.
Options
A : True
B : False
C :
D :
?x. ?p ? h/4?.
Options
A : True
B : False
C :
D :
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