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Physics 914 MCQs [All-Courses]

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Physics is a core science subject that deals with the study of matter, energy, motion, force, heat, light, electricity, magnetism, and modern physics concepts. It plays a vital role in competitive exams such as PPSC, FPSC, NTS, OTS, KPPSC, BPSC, AJKPSC, CSS, and PMS, where questions test conceptual understanding, numerical problem-solving, and application of laws and formulas. 

All Topics  914

ML-1 T-2 is the dimension of_______________?
A Force
B Pressure
C Momentum
D Energy
Correct Answer: Pressure
The dimension of force is__________________?
A MLT-1
B MLT-2
C ML-1T
D ML-1T-2
Correct Answer: MLT-2
Smaller the least count of the instrument more is the measurement________________?
A Accurate
B Precise
C Accurate and precise
D None of these
Correct Answer: Precise
Number of significant figures in 0.0173 is_________________?
A 3
B 4
C 5
D 2
Correct Answer: 3
A digit zero in a measurement__________________?
A May be significant may not significant
B Always significant
C Always insignificant sign
D Significant only if left to a significant figure
Correct Answer: May be significant may not significant
In any measurement the significant figures are______________?
A All accurately known and all doubtful digits
B Only accurately known digits
C Only doubtful digits
D All accurately known digits and the first doubtful digit
Correct Answer: All accurately known digits and the first doubtful digit
Random errors can be reduced by_______________?
A Taking zero correction
B Comparing the instrument with another more accurate one
C Taking mean of several measurements
D All methods explained in A, B and C
Correct Answer: Taking mean of several measurements
The uncertainty in a measurement may occur due to_______________?
A Limitation of an instrument
B Natural variation of the object to be measured
C Inadequate technique
D All given in A, B and C
Correct Answer: All given in A, B and C
The error in measurement may occur due to_________________?
A The inexperience of a person
B The faulty apprentice
C Inappropriate method
D Due to all reasons in A, B and C
Correct Answer: Due to all reasons in A, B and C
Prefix deca represents_______________?
A 10 Raised to power 1
B 10 Raised to power 2
C 10 Raised to power 3
D 10 Raised to power -1
Correct Answer: 10 Raised to power 1
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