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Class-11,Physical World
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Q1) Physics is a
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1 point
Natural Science
Applied Science
Mathematical Science
Engineering Science
Q2) The word "Science" originates from the Latin verb Scientia meaning
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to know
to observe
to see
to experience
Q3) The scientific method is
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a procedure for proposing new hypothesis.
a method for proposing new theories.
a body of techniques for investigating phenomena, acquiring new knowledge.
a prescribed method for investigating phenomena, acquiring new knowledge.
Q4) Which of the following is a possible first step in applying the scientific method?
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1 point
Building a theory
Formulating a hypothesis
Formulation of a question
Conducting tests
Q5) Which of the following is a possible final step in applying the scientific method?
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1 point
Building a theory
Formulating a hypothesis
Formulation of a question
Analysis of test results
Q6) A scientific theory is accepted if
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predictions of the theory are confirmed by experiments.
the theory is approved by a panel of people after studying the theory only.
the theory is derivable from other theories logically.
the theory is very simple elegant or very complicated.
Q7) A scientific theory
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1 point
is changed to suit new fashion among scientists
can be revised if required to fit new phenomenon or data
is fixed once and for all because it is logical
cannot be changed but can be reformulated
Q8) Heliocentric theory proposed by Nicolas Copernicus was
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1 point
replaced by elliptical orbits to fit the taste of new rulers of Italy.
replaced by circular orbits to fit the data better.
replaced by elliptical orbits to fit the data better.
replaced by parabolic orbits to fit the data better.
Q9) Newtonian mechanics could not explain
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movement of planets.
fall of bodies on earth.
flight of rockets.
some of the most basic features of atomic phenomena.
Q10) Wave picture of light failed to explain_________________.
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1 point
the photoelectric effect
interference of light
diffraction of light
polarization of light
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