Projection of Vector on a line or direction MCQ Quiz in தமிழ் - Objective Question with Answer for Projection of Vector on a line or direction - இலவச PDF ஐப் பதிவிறக்கவும்

Last updated on Mar 24, 2025

பெறு Projection of Vector on a line or direction பதில்கள் மற்றும் விரிவான தீர்வுகளுடன் கூடிய பல தேர்வு கேள்விகள் (MCQ வினாடிவினா). இவற்றை இலவசமாகப் பதிவிறக்கவும் Projection of Vector on a line or direction MCQ வினாடி வினா Pdf மற்றும் வங்கி, SSC, ரயில்வே, UPSC, மாநில PSC போன்ற உங்களின் வரவிருக்கும் தேர்வுகளுக்குத் தயாராகுங்கள்.

Latest Projection of Vector on a line or direction MCQ Objective Questions

Top Projection of Vector on a line or direction MCQ Objective Questions

Projection of Vector on a line or direction Question 1:

Let A(0, 3, -3), B(1, 1, 1) and C(2, 0, 3) be three points in space. Then the projection of  on  is equal to?

Answer (Detailed Solution Below)

Option 2 :

Projection of Vector on a line or direction Question 1 Detailed Solution

Concept Used:

Projection of vector on is

Calculation

Given:

Projection of AB on AC =

Projection of AB on AC =

Hence option 2 is correct

Projection of Vector on a line or direction Question 2:

The vector projection of  on , where

A ≡ (2, −3, 0), B ≡ (1, -4, -2), C ≡ (4, 6, 8) and D = (7, 0, 10), is

Answer (Detailed Solution Below)

Option 3 :

Projection of Vector on a line or direction Question 2 Detailed Solution

Answer : 3

Solution :

Vector projection of  on  

 

 

Projection of Vector on a line or direction Question 3:

If  and  then the vector component of  along  is

  1. More than one of the above
  2. None of the above

Answer (Detailed Solution Below)

Option 2 :

Projection of Vector on a line or direction Question 3 Detailed Solution

Concept:

Let  be two vectors. Then the vector component of the vector  is given by:

 

Calculation:

Given:

 and 

|| = √52 

 

The component of vector a along b is 

Mistake PointsWe are asked to find the vector component of 'a' along 'b'. If the scalar component was asked, then there would have been only 5 in the denominator.

Projection of Vector on a line or direction Question 4:

Projection vector of  on  is

Answer (Detailed Solution Below)

Option 2 :

Projection of Vector on a line or direction Question 4 Detailed Solution

Explanation:

The projection vector of  on  is given by .

The correct answer is option 2.

Projection of Vector on a line or direction Question 5:

The projection of vector  = 2î − ĵ + k̂ along  = î + 2ĵ + 2k̂ is

  1. 2

Answer (Detailed Solution Below)

Option 1 :

Projection of Vector on a line or direction Question 5 Detailed Solution

Concept:

The projection of vector   on  is given by .

Calculation:

Given   = 2î − ĵ + k̂  and   = î + 2ĵ + 2k̂

  = ( 2î − ĵ + k̂ )⋅ ( î + 2ĵ + 2k̂ )

= 2 × 1 + (-1) × 2 + 1 × 2 

= 2 - 2 + 2

= 2

|| = | î + 2ĵ + 2k̂ |

 

= 3

The projection of vector   on   = \(\frac{\rm\vec{a}⋅\rm\vec{b}}{|\vec b|}\).

The projection of vector  = 2î − ĵ + k̂ along  = î + 2ĵ + 2k̂ is 2/3.

The correct answer is option 1.

Projection of Vector on a line or direction Question 6:

The magnitude of the projection of the vector 2î + 3ĵ + k̂ on the vector perpendicular to the plane containing the vectors î + ĵ + k̂ and î + 2ĵ + 3k̂, is

Answer (Detailed Solution Below)

Option 2 :

Projection of Vector on a line or direction Question 6 Detailed Solution

Concept -

Use of normal vector  and projection vector

projection of  on  is 

Solution

Normal vector to the plane to plane containing  and  is 

 

Projection of  on  = 

Hence the final answer is option 2.

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