Physics MCQs

852 MCQs  (Page 45 of 86)

Attempt Physics Quiz
Which of the following pairs does not have identical dimensions ?
A. Torque and energy
B. Momentum and impulse
C. Energy and work
D. Mass and moment of inertia
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It is easier to turn a steering wheel with both hands than with a single hand because______________?
A. Accelerating force increases on the wheel
B. Two forces act on the wheel
C. Two hands provide a firm grip
D. The couple acts on the wheel
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The cross product i^ x j^ is equal to_______________?
A. Zero
B. One
C. I^
D. K^
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The unit vector in the direction of vector A = 2 i^ -2j^ + k^ is_______________?
A. 2i^ – 2j^ + k^
B. (2i^ – 2j^ +k^)/9
C. (2i^ – 2j^ +k^)/3
D. (2i^ – 2j^ +k^)/5
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Addition of vector obeys_____________?
A. Commutative law
B. Distributive law
C. Associative law
D. All given laws in a, b and c
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The direction of a vector in space is specified by_______________?
A. One angle
B. Two angle
C. Three angle
D. No angle
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A vector can be multiplied by a number. The number may be_______________?
A. Dimensionless
B. Dimensional scalar
C. Negative
D. All a, b and c are correct
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Unit vector n^ is along______________?
A. X-axis
B. Normal on a surface
C. Y-axis
D. Z-axis
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The rectangular coordinate system is also called______________?
A. Polar coordinate system
B. Cartesian coordinate system
C. Cylindrical coordinate system
D. Spherical coordinate system
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Maximum number of rectangular components are_____________?
A. 1
B. 2
C. 3
D. 4
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Word of the Day
23 Jul
Aisle
a passage between rows of seats in a building such as a church or theatre, an aircraft, or train.
طویل تنگ راستہ، نشتوں کے درمیان راستہ

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