A. A.B = A^ B^
B. |A| = |B|
C. |A^| = |B^|
D. AB^ = BA^
Related Mcqs:
- Which of the following is not a correct representation method for prefixes______________?
A. 1mm
B. 10km
C. 1000um
D. Both A and B - If a vector Ā is making an angle “∅” with positive y-axis then which of the following is correct.?
A. Ax= ACos∅
B. Ay= ASin∅
C. Ay= ACos∅
D. NoneSubmitted by: Zahid Jagirani
- Which one is not correct for a vector A= 2i+2j+3k ?
A. Has direction 45° with an x-axis
B. Has magnitude 2
C. Has magnitude 2 and direction °=45° with a y-axis
D. Has magnitude -2 - Which one is the correct relation for fundamental frequency of open and closed pipe ?
A. fopen = 2 fclosed
B. fclosed = 2fopen
C. fopen = fclosed
D. fopen = 1 / f closed - A man lifts vertically a weight of 40kg through 1m in 10s; while a chile lifts vertically a weight of 10kg through a distance of 1m in 1s. What will be correct inference ?
A. man does more work than child
B. child does more work than man
C. both do the same amount of work
D. it is a foolish question - Choose the correct statement. In the case of AC circuit ohms law holds for_______________?
A. Peak values of voltage and current
B. Effective values of voltage and current
C. Instantaneous values of voltage and current
D. All of the above - The unit of force is _________ and its symbol is ______________ Which is the correct pair ?
A. Newton, n
B. Newton, N
C. newton, n
D. newton, N - Three students measured the length of a needle with meter rod and recorded as : (i) 0.2145m (ii) 0.21m (iii) 0.214m Which one is a correct record ?
A. Only (i)
B. Only (ii)
C. Only (iii)
D. Both (i) and (ii) - Which one is the dimensionally correct equation ?
A. f=vt
B. S=Vit+1/2at2
C. V=St
D. V=f/t - Identify the correct statement about minority carriers_____________?
A. holes in n-type and free electrons in p-type
B. holes in n-type and p-type
C. free electrons in n-type and holes in p-type
D. free electrons in n-type and p-type
