MCQs Solution • Chapter 2: Vectors and Equilibrium • Physics Class 11 • Federal and KPK Board
Автор: Alpha Science Academy
Загружено: 2023-01-12
Просмотров: 16390
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#physics #federal_board #mcqs
this video consist and detailed solution of MCQs from chapter number 2 of Physics class 11.
Two vectors lie with their tails at the same point. When the angle between them is increased by 20° their scalar product has the same magnitude but changes from positive to negative. The original angle between them was:
(A) 0 (B) 60° (C) 70° (D)80°
The minimum number of vectors of unequal magnitudes required to produce zero resultant is
(A) 2 (B) 3 (C) 4 (D)5
If the resultant of two vectors, each of magnitude A is also a vector of magnitude A, the angle between the two vectors will be
(A) 30° (B) 45° (C) 60° (D)120°
The magnitude of vector A = 2î + ĵ + 2k̂ is
(A) 9 (B) 5 (C) 3 (D) 1
and so on
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