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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

For a gas obeying Boyles law if the pressure is doubled the volume becomes________________?
A double
B one half
C four times
D one fourth
Correct Answer: one half
The area enclosed by the curve ABCDA for a Carnot heat engine represents the work done by Carnot engine_______________?
A at any instant
B averagely
C during its operation
D during one cycle
Correct Answer: during one cycle
At what temperature is the Fahrenheit scale reading equal to twice that of the Celsius scale?
A 460°C
B 280°C
C 360°C
D 160°C
Correct Answer: 160°C
Standard condition STP refer to a gas at ___________________?
A 76cm 0°C
B 760mm 273K
C 1atm 273K
D all of the above
Correct Answer: all of the above
Which one is true for internal energy ?
A It is sum of all forms of energies associated with molecules of a system
B It is a state function of a system
C It is proportional to transnational K.E of the molecules
D All are correct
Correct Answer: All are correct
According to Pascals law the pressure of gas in a vessel is_____________?
A Different in different direction
B Same in all direction
C Same only along opposite directions
D Same only along normal directions
Correct Answer: Same in all direction
The size of one degree of Celsius is equal to_________________?
A One degree of Fahrenheit scale
B 1.8 degrees of Fahrenheit scale
C 3.2 degrees of Fahrenheit scale
D 2.12 degrees of Fahrenheit scale
Correct Answer: 1.8 degrees of Fahrenheit scale
The Fahrenheit and centigrade scales agree to________________?
A 40
B 15.5
C 542
D 273
Correct Answer: 40
Normal human body temperature 98.6°F corresponds to______________?
A 37°C
B 42°C
C 55°C
D 410°C
Correct Answer: 37°C
Numerical value of Boltzmanns constant is______________?
A 1.38×10-31JK-1
B 3.18×10-31JK-1
C 3.18×10-23JK-1
D 1.38×10-23JK-1
Correct Answer: 1.38×10-23JK-1
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