Find the vector joining the points P(2, 3, 0) and Q(– 1, – 2, – 4) directed from P to Q.
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A vector can be represented as a directed line segment in which length indicates ……………….. and arrow indicates ……………..
A) magnitude, direction
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The points (0, 0), (0, 3), (4, 3) and (4, 0) are plotted in graph sheet. The figured formed by joining the points with straight lines is
Correct option is D) rectangle
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Give reason: Electric vector is called light vector.
As the electric field vector \((\overrightarrow{E}_0)\) is more prominent than the magnetic field vector \((\overrightarrow{B}_0)\), it is responsible for optical effects due to EM waves. For this reason, electric vector is called light vector.
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Find a vector of magnitude 10 units and parallel to the resultant of the vectors p =3i -5j +7k and vector q =2i +5j -5k
Resultant vector \(\vec p\times\vec q\)\(=\begin{vmatrix}\hat i&\hat j&\hat k\\3&-5&7\\2&5&-5\end{vmatrix}\) = \(\hat i(25-35)-\hat j(-15-14)+\hat k(15+10)\) = -10\(\hat i\) + 29\(\hat j\) + 25\(\hat k\) vector of magnitude 10 and parallel to resultant vector is \(\vec n=\frac{\pm10(-10\hat i+29\hat i+25\hat k)}{1-10\hat i+29\hat...
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The figure formed by joining the mid-points of sides of a rhombus is
Correct option is B) rectangle
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ABC is an equilateral triangle with side 10 cm. The perimeter of the triangle formed by joining the mid points of the sides of ΔABC is
Correct option is C) 15 cm
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Circlet of six chitinous teeth and backwardly directed bristles are present in _____ .
The correct answer is (D) gizzard
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the electric field vector in an electromagnetic wave travelling in free space has amplitude 120N/C.determine electrostatic energy density and the amplitude of the magnett field vector.
Some one please give this answer
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Let ` vecu = u_(1) hati + u_(2) hatj` be a unit vector in xy plane and ` vecw = 1/sqrt6 (hati +hatj +2hatk)` . Given that there exists a vector `vecc`
Correct Answer - A we have , ` veca.vecb= veca.vecc = vec0` ` Rightarrow veca bot vecb, veca bot vecc` ` Rightarrow veca || (vecb xx vecc)` ` Rightarrow veca...
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