(DPP#04)/(" Q.I "" The vector "i+xj+3k" is rotated through an angle "theta" and doubled in magnitude,then it becomes ")

The vector bar(i)+xbar(j)+3bar(k) is rotated through an angle theta and doubled in magnitude,then it becomes 4bar(i)+(4x-2)bar(j)+2bar(k) the value of x is

The vector hat i+xhat j+3hat k is rotated through an angle theta and doubled in magnitude,then it becomes 4hat i+(4x-2)*hat j+2hat k. Then value of x are -(2)/(3)(b)(1)/(3)(c)(2)/(3)(d)2

The vector hati+xhatj+3hatk is rotated through an angle theta and doubled in magnitude, then it becomes 4hati+(4x-2)hatj+2hatk . Then values of x are

The vector hati + hatj + 3 hatk is rotated through an angle theta and is doubled in magnitude, then it becomes 4 hati + (4x -2 ) hatj + 2hatk. The value of x is :

The vector hati+xhatj+3hatk is rotated through an angle theta and doubled in magnitude, then it becomes 4hati+(4x-2)hatj+2hatk . Then values of x are (A) -2/3 (B) 1/3 (C) 2/3 (D) 2

The vector hati+xhatj+3hatk is rotated through an angle theta and doubled in magnitude, then it becomes 4hati+(4x-2)hatj+2hatk . Then values of x are (A) -2/3 (B) 1/3 (C) 2/3 (D) 2

The vector hat(i)+xhat(j)+3hat(k) is rotated through an angle theta and doubled in magnitude then it becomes 4hat(i)+(4x-2)hat(j)+2hat(k) . The value of x is