NEET Chemistry MCQ: NCERT Parallelogram Law of Vectors | NEET.Guide Questions

The resultant of two forces, one doubled the other in magnitude is perpendicular to the smaller of the forces. The angle between the two forces is

A

${\rm{6}}{{\rm{0}}^0}$

B

${\rm{12}}{{\rm{0}}^0}$

C

${\rm{15}}{{\rm{0}}^0}$

D

${\rm{9}}{{\rm{0}}^0}$

Question Tags

📚 Subject:Chemistry

📑 Chapter:Motion In A Plane

🎯Topic:Parallelogram Law Of Vectors

🎓 Ncert Level:Application

🎯Difficulty :Medium

⚡ Time Required :3 mins

🔄Ncert Concepts :Vector addition, Resultant force, Trigonometry, Perpendicular vectors

Related Questions

The resultant of two forces, one doubled the other in magnitude is perpendicular to the smaller of the forces. The angle between the two forces is

A

${\rm{6}}{{\rm{0}}^0}$

B

${\rm{12}}{{\rm{0}}^0}$

C

${\rm{15}}{{\rm{0}}^0}$

D

${\rm{9}}{{\rm{0}}^0}$

Question Tags

📚 Subject:Chemistry

📑 Chapter:Motion In A Plane

🎯Topic:Parallelogram Law Of Vectors

🎓 Ncert Level:Application

🎯Difficulty :Medium

⚡ Time Required :3 mins

🔄Ncert Concepts :Vector addition, Resultant force, Trigonometry, Perpendicular vectors

The parallelogram law of vector addition is equivalent to which other method of vector addition?

A

Polygon Law of Vector Addition

B

Triangle Law of Vector Addition

C

Component Method

D

Resolution of Vectors

Question Tags

📚 Subject:Chemistry

📑 Chapter:Structure Of Atom

🎯Topic:Parallelogram Law Of Vectors

🎓 Ncert Level:Remembering

🎯Difficulty :Easy

⚡ Time Required :1 mins

🔄Ncert Concepts :Parallelogram Law of Vectors, Triangle Law of Vector Addition

There are two forces each of magnitude 10 units. One inclined at an angle of ${30^0}$ and the other at an angle of ${135^0}$ to the positive direction of x-axis. The x and y components of the resultant are respectively.

A

$1.59\;\hat i{\mkern 1mu} and\;{\mkern 1mu} 12.07\hat j$

B

$10\hat i\;and\;10\hat j$

C

$1.59\;\hat i$

D

$15.9\hat i\;and\;12.07\hat j$

Question Tags

📚 Subject:Chemistry

📑 Chapter:Structure Of Atom

🎯Topic:Parallelogram Law Of Vectors

🎓 Ncert Level:Application

🎯Difficulty :Hard

⚡ Time Required :3 mins

🔄Ncert Concepts :vector resolution, vector addition, trigonometry

If the sum of the two unit vectors is also a unit vector, then magnitude of their difference is

A

$\sqrt 2$

B

$\sqrt 3$

C

$\sqrt 4$

D

$\sqrt 7$

Question Tags

📚 Subject:Chemistry

📑 Chapter:Motion In A Plane

🎯Topic:Parallelogram Law Of Vectors

🎓 Ncert Level:Application

🎯Difficulty :Medium

⚡ Time Required :3 mins

🔄Ncert Concepts :unit vectors, vector addition, vector subtraction, magnitude of a vector, dot product

The forces are such that the sum of their magnitude is 18 N and their resultant is perpendicular to the smaller force and magnitude of resultant is 12 N. Then the magnitudes of the forces are

A

12N, 6 N

B

13N, 5N

C

10N, 8N

D

16N, 2N

Question Tags

📚 Subject:Chemistry

📑 Chapter:Structure Of Atom

🎯Topic:Parallelogram Law Of Vectors

🎓 Ncert Level:Application

🎯Difficulty :Medium

⚡ Time Required :3 mins

🔄Ncert Concepts :Vector addition, Resultant force, Pythagorean theorem

If the sum of two unit vectors is a unit vector, then magnitude of difference is

A

$\sqrt 2$

B

$\sqrt 3$

C

$\frac{1}{{\sqrt 2 }}$

D

$\sqrt 5$

Question Tags

📚 Subject:Chemistry

📑 Chapter:Motion In A Plane

🎯Topic:Parallelogram Law Of Vectors

🎓 Ncert Level:Application

🎯Difficulty :Medium

⚡ Time Required :3 mins

🔄Ncert Concepts :Unit vectors, Vector addition, Vector subtraction, Magnitude of a vector, Dot product

There are two forces each of magnitude 10 units. One inclined at an angle of ${30^0}$ and the other at an angle of ${135^0}$ to the positive direction of x-axis. The x and y components of the resultant are respectively.

A

$1.59\;\hat i{\mkern 1mu} and\;{\mkern 1mu} 12.07\hat j$

B

$10\hat i\;and\;10\hat j$

C

$1.59\;\hat i$

D

$15.9\hat i\;and\;12.07\hat j$

Question Tags

📚 Subject:Chemistry

📑 Chapter:Structure Of Atom

🎯Topic:Parallelogram Law Of Vectors

🎓 Ncert Level:Application

🎯Difficulty :Hard

⚡ Time Required :3 mins

🔄Ncert Concepts :vector resolution, vector addition, trigonometry

The parallelogram law of vector addition states that the resultant of two vectors is represented by:

A

The sum of the magnitudes of the two vectors

B

The difference of the magnitudes of the two vectors

C

The diagonal of the parallelogram formed by the two vectors as adjacent sides

D

The side of the parallelogram opposite to the origin

Question Tags

📚 Subject:Chemistry

📑 Chapter:Structure Of Atom

🎯Topic:Parallelogram Law Of Vectors

🎓 Ncert Level:Remembering

🎯Difficulty :Medium

⚡ Time Required :1 mins

🔄Ncert Concepts :Parallelogram Law of Vectors, Resultant Vector, Vector Addition

The resultant of two forces 3P and 2P is R. If the first force is doubled them the resultant is also doubled. The angle between the two forces is

A

${\rm{6}}{{\rm{0}}^0}$

B

${\rm{12}}{{\rm{0}}^0}$

C

${\rm{5}}{{\rm{0}}^0}$

D

${\rm{9}}{{\rm{0}}^0}$

Question Tags

📚 Subject:Chemistry

📑 Chapter:Motion In A Plane

🎯Topic:Parallelogram Law Of Vectors

🎓 Ncert Level:Analyzing

🎯Difficulty :Medium

⚡ Time Required :3 mins

🔄Ncert Concepts :Resultant of forces, Law of Cosines, Vector addition

If the sum of the two unit vectors is also a unit vector, then magnitude of their difference is

A

$\sqrt 2$

B

$\sqrt 3$

C

$\sqrt 4$

D

$\sqrt 7$

Question Tags

📚 Subject:Chemistry

📑 Chapter:Motion In A Plane

🎯Topic:Parallelogram Law Of Vectors

🎓 Ncert Level:Application

🎯Difficulty :Medium

⚡ Time Required :3 mins

🔄Ncert Concepts :Unit Vectors, Vector Addition, Vector Subtraction, Magnitude of a Vector, Dot Product

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