VECTOR-Physics Academic & Admission Care

04/09/2016

't wait. The time will never be just right.
Don't wait until everything is just right. It will never perfect. There will always be challenges, obstacles and less than perfect conditions. So what. Get started now. With each step you take, you will grow stonger and stonger, more and more skilled and more self-confident and more successful.........
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05/11/2015

14/09/2014

DHAKA UNIVERSITY
Admission Test 2014-15
Ans: of PHYSICS portion set-1

What is the angle between two vectors A ⃗=3.0i ̂-3.0j ̂and B ⃗=5.0i ̂+5.0k ̂?
SOLVE: cos⁡θ=(15+0+0)/(√((9+9))×√((25+25) ))=15/(3√2×5√2)=15/(15×√2×√2)=1/2 〖=cos〗⁡60 ∴θ=60˚

1.A, 2.B, 3.B, 4.B, 5.C, 6.D, 7.C, 8.D, 9.C, 10.A, 11.B, 12.A, 13.D, 14.B, 15.C, 16.C, 17.D, 18.A, 19.C, 20.A, 21.C, 22.B, 23.B, 24:B, 25.B, 26.C, 27.C, 28.B, 29.D, 30.D

11/06/2014

Decimal Prefixes.....................