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Unit and Measurement MCQ question and answer with solution | Physics Gk MCQs

Learn Unit and Measurement MCQ Questions and answers with easy and logical explanations in Physics Gk . Unit and Measurement MCQ question provides all type of technical mcq questions which is important for SSC-CGL, UPPSC, NDA, CDS and all govt examinations Page-3 section-1

Each section contains 100 MCQs on Unit and Measurement .
21
Which of the following is not one of the fundamental quantities in Physics?
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Answer & Solution
Answer: Option C
No explanation is given for this question. Let's Discuss on Board
22
Which unit is equal to unit of energy-
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Answer & Solution
Answer: Option C
No explanation is given for this question. Let's Discuss on Board
23
In the following which pair has not same unit?
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Answer & Solution
Answer: Option D
No explanation is given for this question. Let's Discuss on Board
24
2 kWh = ?
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Answer & Solution
Answer: Option B
Solution:
A kilowatt-hour (kWh) is a unit of energy. It is the amount of energy consumed when a power of 1 kilowatt (1000 watts) is used for 1 hour (3600 seconds).

1 kWh = 1000 W × 3600 s = 3.6 × 106 J

Therefore,

2 kWh = 2 × 3.6 × 106 J = 7.2 × 106 J

Hence, 2 kWh = 7.2 × 106 joules, so the correct answer is Option B.
25
In terms of SI prefixes 10-15 is called
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Answer & Solution
Answer: Option D
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26
What does a 'seismograph' record?
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Answer & Solution
Answer: Option C
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27
The SI unit of radioactivity is . . . . . . . .
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Answer & Solution
Answer: Option B
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28
Newton is the unit to measure . . . . . . . .
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Answer & Solution
Answer: Option B
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29
1 KW = ?
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Answer & Solution
Answer: Option A
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30
Odometer in vehicle measures-
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Answer & Solution
Answer: Option B
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