Related InterviewSolutions

• Three concurrent force of the same magnitude are in equilibrium. What is the angle between the forces? Also name the triangle formed by the forces as sides.A. `60^(@)` equilateral triangleB. `120^(@)` equilibrium triangleC. `120^(@),30^(@),30^(@)` an isosceles triangleD. `120^(@)` an obtuse angled triangle.
• For the equation `x=ACsin (Bt)+D e^((BCt))`, where x and t represent position and time respectively, which of the following is/are CORRECT :-A. Dimension of AC is `LT^(-1)`B. Dimension of B is `T^(-1)`C. Dimension of AC and D are sameD. Dimension of C is `T^(-1)`
• Personnel at an air post control tower track a UFO. At 11:02 am it was located at position A and at 11:12 am is was located at position B. Displacement vector of UFO is A. `400hati+2200hatj+400hatk`B. `1200hati+1000hatj+800hatk`C. `2000hati+2200hatj+2000hatk`D. `400hati+1000hatj+400hatk`
• Consider three vectors `A=hati +hatj-2hatk`, `B=hati +hatj+2hatk and 2hati -3hatj +4hatk` A vector X of the from `alphaA +betaB (alpha and beta"are numbers")` is perpendicular to C .The ratio of `alpha and beta` isA. `1:1`B. `2:1`C. `-1:1`D. `3:1`
• Which of the following is perpendicular to `hati-hatj-hatk`?A. `hati+hatj+hatk`B. `-hati+hatj+hatk`C. `hati+hatj-hatk`D. none of these.
• Which of the following statement about the sum of the two vectors `vecA " and " vecB`, is/are correct ?A. `|vecA+vecB|leA+B`B. `|vecA+vecB|ge A+B`C. `|vecA+vecB|ge|vecA-vecB|`D. `|vecA+vecB|ge|A-B|`
• A man moves towards 3m north then 4 m towards east and finally 5 m towards `37^(@)` south of west. His displacement from origin is :-A. `5sqrt(2)m`B. 0mC. 1mD. 12m
• Find the resultant of the following two vector `vecA ` and `vecB`. `vec(A):40` units due east and , `vec(B):25` units `37^(@)` north of westA. 25 units `37^(@)` north of westB. 25 units `37^(@)` north of eastC. 40 units `53^(@)` north of westD. 40 units `53^(@)` north of east
• L,M and T are units of length, Mass and Time respectively in a system of units In which of the following system unit of enery is `10^(9)` ergA. (III)(i)(S)B. (IV)(iii)(R)C. (II)(iv)(Q)D. (I)(iii)(P)
• A man is standing at point `(x=5m, y=0)` . Then be walks along staight line to `(x=0 , y=5m)` . A second man walks from the same initial position along the x-axis to the arigin and then along the y-axis to `(x=0, y=5m)` . Mark the correct statement(s) :A. Displacement vector of first man and second man are equalB. Distance travelled by second man is greater.C. Magnitude of displacement of second man is same that of first man but direction is differentD. Magnitude of displacement is `sqrt(50)m` for `2^(nd)` man.