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ইলেকট্রিক্যাল এন্ড ইলেকট্রনিক ইঞ্জিনিয়ারিং

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941. MCQPractice set · Question 8

Closed path-এ distance কী হতে পারে?

a.
zero-ই হতে হবে
b.
positive
c.
negative
d.
undefined

Correct answer: b

বস্তু পথ অতিক্রম করেছে, তাই distance positive হলেও displacement zero হতে পারে।

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942. MCQPractice set · Question 9

Speed-এর সংজ্ঞা কোনটি?

a.
distance/time
b.
displacement/time
c.
force/mass
d.
change in velocity/time

Correct answer: a

Average speed = total distance/total time।

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943. MCQPractice set · Question 10

Velocity-এর সংজ্ঞা কোনটি?

a.
distance/time
b.
displacement/time
c.
mass/time
d.
force/time

Correct answer: b

Average velocity = displacement/elapsed time।

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944. MCQPractice set · Question 11

Speed কোন ধরনের quantity?

a.
scalar
b.
vector
c.
position vector
d.
axial vector

Correct answer: a

Speed-এর magnitude আছে, direction নেই।

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945. MCQPractice set · Question 12

Velocity কোন ধরনের quantity?

a.
scalar
b.
vector
c.
dimensionless
d.
unitless

Correct answer: b

Velocity-এর magnitude ও direction দুটোই থাকে।

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946. MCQPractice set · Question 13

Speed-এর SI unit কী?

a.
m
b.
m/s
c.
m/s²
d.
N

Correct answer: b

Speed = distance/time, তাই unit m/s।

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947. MCQPractice set · Question 14

Velocity-এর SI unit কী?

a.
m/s
b.
m/s²
c.
km
d.
N/s

Correct answer: a

Velocity-এর dimension [LT⁻¹], SI unit m/s।

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948. MCQPractice set · Question 15

Acceleration কী?

a.
displacement-এর rate
b.
velocity-এর rate of change
c.
distance-এর total
d.
mass-এর rate

Correct answer: b

Acceleration হলো সময়ের সঙ্গে velocity পরিবর্তনের হার।

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949. MCQPractice set · Question 16

Acceleration-এর SI unit কোনটি?

a.
m/s
b.
m/s²
c.
m²/s
d.
N

Correct answer: b

Acceleration = velocity/time, তাই unit m/s²।

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950. MCQPractice set · Question 17

Acceleration কোন ধরনের quantity?

a.
scalar
b.
vector
c.
dimensionless
d.
base quantity

Correct answer: b

Velocity-এর পরিবর্তনের direction থাকায় acceleration vector।

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