CBSE 11th Standard Physics Subject Motion in a Plane Ncert Exemplar MCQ Questions With Solution 2021
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CBSE 11th Standard Physics Subject Motion in a Plane Ncert Exemplar MCQ Questions With Solution 2021
11th Standard CBSE
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Reg.No. :
Physics
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Which one of the following statements is true?
(a)A scalar quantity is the one that is conserved in a process
(b)A scalar quantity is the one that can never take negative values
(c)A scalar quantity is the one that does not vary from one point to another in space
(d)A scalar quantity has the same value for observers with different orientation of the axes
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Consider the quantities, pressure, power, energy, impulse, gravitational potential, electrical charge, temperature, area. Out of these, the only vector quantity lies is/ are
(a)impulse, pressure and area
(b)impulse
(c)area and gravitational potential
(d)impulse and pressure
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The component of a vector r along X-axis will have maximum value if
(a)r is along positive y-axis
(b)r is along positive x-axis
(c)r makes an angle of 45° with the x-axis
(d)r is along negative y-axis
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In a two dimensional motion, instantaneous speed Vo is a positive constant. Then, which of the following are necessarily true?
(a)The acceleration of the particle is zero
(b)The acceleration of the particle is bounded
(c)The acceleration of the particle is necessarily in the plane of motion
(d)The particle must be undergoing a uniform circular motion
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Figure shows the orientation of two vectors u and v in the xy-plane
\(\text { If } \mathbf{u}=a \hat{\mathbf{i}}+b \hat{\mathbf{j}} \text { and } \mathbf{v}=p \hat{\mathbf{i}}+q \hat{\mathbf{j}}\) Which of the following is correct?(a)a and p are positive while band q are negative
(b)a, p and b are positive while q is negative
(c)a, q and b are positive while p is negative
(d)a, b, p and q are all positive
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CBSE 11th Standard Physics Subject Motion in a Plane Ncert Exemplar MCQ Questions With Solution 2021 Answer Keys
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(d)
A scalar quantity has the same value for observers with different orientation of the axes
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(b)
impulse
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(b)
r is along positive x-axis
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(c)
The acceleration of the particle is necessarily in the plane of motion
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(b)
a, p and b are positive while q is negative
