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Class 8 Exam  >  Class 8 Tests  >  Test: Exponents And Powers- 2 - Class 8 MCQ

Test: Exponents And Powers- 2 - Class 8 MCQ


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30 Questions MCQ Test - Test: Exponents And Powers- 2

Test: Exponents And Powers- 2 for Class 8 2024 is part of Class 8 preparation. The Test: Exponents And Powers- 2 questions and answers have been prepared according to the Class 8 exam syllabus.The Test: Exponents And Powers- 2 MCQs are made for Class 8 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Exponents And Powers- 2 below.
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Test: Exponents And Powers- 2 - Question 1
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The value of 25 is _________.

Detailed Solution for Test: Exponents And Powers- 2 - Question 1
The value of 2 raised to power 5 is 32 because 2x2x2x2x2=32 therefore,32 is correct answer.
Test: Exponents And Powers- 2 - Question 2
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The Base in the expression 1024 is __________.

Detailed Solution for Test: Exponents And Powers- 2 - Question 2
Answer is b not d. Base is 10 and exponent or power is 24.
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Test: Exponents And Powers- 2 - Question 3
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The value of 30 is ________.

Detailed Solution for Test: Exponents And Powers- 2 - Question 3
- Any non-zero number raised to the power of zero equals 1.
- Therefore, 3⁰ = 1.
- This is a basic rule of exponents used in mathematics.
Test: Exponents And Powers- 2 - Question 4
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Multiplicative  inverse of 7-2 is _________ 
Test: Exponents And Powers- 2 - Question 5
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Fill in the blank  am × an = a ........ where m and n are natural numbers:-
Test: Exponents And Powers- 2 - Question 6
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The exponential form of (1/8 )× (3)-3 is given by which of the following expression:
Detailed Solution for Test: Exponents And Powers- 2 - Question 6

 

Test: Exponents And Powers- 2 - Question 7
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The value of 1/3-2 is equal to
Test: Exponents And Powers- 2 - Question 8
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In exponential form 149,600,000,000 m is given by :
Test: Exponents And Powers- 2 - Question 9
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In simplified form (3-1 + 4-1 + 5-1)0 is equals to
Detailed Solution for Test: Exponents And Powers- 2 - Question 9

(3-1 + 4-1 + 5-1)0
(    )0  (any no)0=1 

Test: Exponents And Powers- 2 - Question 10
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The value of (2/3)-2 is
Detailed Solution for Test: Exponents And Powers- 2 - Question 10

Test: Exponents And Powers- 2 - Question 11
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In standard form 21600000 is written as
Detailed Solution for Test: Exponents And Powers- 2 - Question 11

count from rigth to left till you get last non-zero number 
like here 2 is the last non-zero number and for it we have to count 7 times
then write 2.16x 107

Test: Exponents And Powers- 2 - Question 12
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Usual form of the expression 3 X 10-5 is given by
Detailed Solution for Test: Exponents And Powers- 2 - Question 12

Since the power is negative, we move 5 place to the left including 3.So answer is 0.00003

Test: Exponents And Powers- 2 - Question 13
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1 micron is equals to  
Detailed Solution for Test: Exponents And Powers- 2 - Question 13

 

One micron, or micrometer (μm), is equal to one millionth of a meter, or 1×10⁻⁶ meters. It can also be written as 0.000001 meters. 

Test: Exponents And Powers- 2 - Question 14
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The approximate distance of moon from the earth is 384,467,000 m and in exponential form. This distance can be written as 
Detailed Solution for Test: Exponents And Powers- 2 - Question 14

Given , The distance between the moon

and the earth is 384467000 m 

384467000

= 384467000 × ( 108/108 )

= ( 384467000/108 ) × 108

= 3.84467 × 108 m

Test: Exponents And Powers- 2 - Question 15
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7 × 10-5 m is the standard form of which of the following
Test: Exponents And Powers- 2 - Question 16
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The standard form of 4050000 is given by
Test: Exponents And Powers- 2 - Question 17
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Which one of the following is the value of 115
Test: Exponents And Powers- 2 - Question 18
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1/125 is the multiplicative inverse of
Detailed Solution for Test: Exponents And Powers- 2 - Question 18


So it’s the multiplicative inverse of 1/125

Test: Exponents And Powers- 2 - Question 19
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16 is the multiplicative inverse of  
Detailed Solution for Test: Exponents And Powers- 2 - Question 19

Test: Exponents And Powers- 2 - Question 20
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Value of (30 + 20) × 50 is  
Detailed Solution for Test: Exponents And Powers- 2 - Question 20

Calculation:

- First, we need to solve the expression inside the parentheses: (30 + 20) x 50
(30 + 20) x 50    [ a0 = 1 ]
( 1 + 1) x 1
2 x 1 = 2

Test: Exponents And Powers- 2 - Question 21
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The value of 72 is
Test: Exponents And Powers- 2 - Question 22
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The Base in the expression 8100 is
Detailed Solution for Test: Exponents And Powers- 2 - Question 22

8100

In this equation, 8 is the base and 100 is the exponent.

Test: Exponents And Powers- 2 - Question 23
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The value of 10000 is
Test: Exponents And Powers- 2 - Question 24
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Multiplicative inverse of 5-2 is
Detailed Solution for Test: Exponents And Powers- 2 - Question 24

 

Test: Exponents And Powers- 2 - Question 25
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Value of (23)2 is given by ...........
Detailed Solution for Test: Exponents And Powers- 2 - Question 25

(23)2 = (2)6 = 64

Test: Exponents And Powers- 2 - Question 26
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The value of 82 ÷ 23 is given by........
Detailed Solution for Test: Exponents And Powers- 2 - Question 26

Test: Exponents And Powers- 2 - Question 27
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The value of 1/5-3 is equal to ............
Detailed Solution for Test: Exponents And Powers- 2 - Question 27

1/a-n=an
so 1/5-3=53=125

Test: Exponents And Powers- 2 - Question 28
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In exponential form 140,000,000,000 Kg is given by ............
Test: Exponents And Powers- 2 - Question 29
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The expression, (5-1 + 7-1 + 3-1)0 is equals to 
Test: Exponents And Powers- 2 - Question 30
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The value of (1/3)-2 is  
Detailed Solution for Test: Exponents And Powers- 2 - Question 30

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