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ইন্ডাস্ট্রিয়াল এন্ড প্রোডাকশন ইঞ্জিনিয়ারিং

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511. MCQPractice set · Question 6

Equal vectors-এর শর্ত কী?

a.
same magnitude ও same direction
b.
same tail only
c.
same unit only
d.
opposite direction

Correct answer: a

Equal vectors-এর magnitude এবং direction একই; position আলাদা হতে পারে।

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512. MCQPractice set · Question 7

একটি vector-কে parallel translation করলে কী অপরিবর্তিত থাকে?

a.
magnitude ও direction
b.
tail-এর coordinate only
c.
শুধু mass
d.
কিছুই নয়

Correct answer: a

Free vector-এর position বদলালেও magnitude ও direction অপরিবর্তিত থাকে।

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513. MCQPractice set · Question 8

Zero vector-এর graphical representation কী?

a.
zero-length arrow
b.
unit arrow
c.
infinite arrow
d.
circle

Correct answer: a

Zero vector-এর magnitude zero, তাই তার graphical arrow-এর length zero।

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514. MCQPractice set · Question 9

Unit vector-এর magnitude কত?

a.
0
b.
1
c.
−1
d.
যেকোনো মান

Correct answer: b

Unit vector-এর সংজ্ঞা অনুযায়ী magnitude 1।

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515. MCQPractice set · Question 10

Vector A-এর unit vector-এর formula কোনটি?

a.
A/|A|
b.
|A|/A
c.
d.
A+|A|

Correct answer: a

Non-zero vector-এর direction unit vector  = A/|A|।

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516. MCQPractice set · Question 11

Positive x-axis-এর unit vector কোনটি?

a.
î
b.
ĵ
c.
d.

Correct answer: a

î positive x-axis-এর unit vector।

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517. MCQPractice set · Question 12

Positive y-axis-এর unit vector কোনটি?

a.
î
b.
ĵ
c.
d.

Correct answer: b

ĵ positive y-axis-এর unit vector।

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518. MCQPractice set · Question 13

Positive z-axis-এর unit vector কোনটি?

a.
î
b.
ĵ
c.
d.

Correct answer: c

k̂ positive z-axis-এর unit vector।

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519. MCQPractice set · Question 14

Vector A = 3î + 4ĵ-এর magnitude কত?

a.
3
b.
4
c.
5
d.
7

Correct answer: c

|A| = √(3²+4²)=5।

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520. MCQPractice set · Question 15

Vector A = 5î + 12ĵ-এর magnitude কত?

a.
7
b.
13
c.
17
d.
60

Correct answer: b

|A|=√(25+144)=13।

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