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Free Online Mock Physics Multiple Choice Test on Twodimensions motion
Sub Category : Twodimensions motion Test : 9 Time Left :
1) A man swims from a point A on one bank of a river of width 100m. When the swims perpendicular to the water current, he reaches the other banks 50 m downstream. The angle to the bank at which he should swim, to reach the directly opposite point B on the other bank is(1) 100 upstream (2) 200 upstream (3) 300 upstream (4) 600 upstream
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2) Given: A = 4i + 6j and B = 2i + 3j. Which of the following is correct?(1) A x B = 0 (2) A . B = 24 (3) | A |/| B | = 1/2 (4) A and B are anti-parallelIf A. B = 0 and A x B = 1, then A and B are(1) perpendicular unit vectors (2) parallel unit vectors (3) parallel (4)perpendicular
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3) If A. B = 0 and A x B = 1, then A and B are(1) perpendicular unit vectors (2) parallel unit vectors (3) parallel (4) perpendicular
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4) If P, Q and R are coplanar vectors, then which one of the following is definitely correct(1) (P x Q). R = 0 (2) (P . Q) x R = 0 (3) P x Q x R = 0 (4) (P . Q). R = 0
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5) What is the angle made by 3i + 4j with x-axis?(1) 00 (2) 1800 (3) tan-1(3) (4) tan-1(4/3)
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