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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

Product of time period and frequency is ____________?
A Time period
B Frequency
C Unity
D Velocity
Correct Answer: Unity
1atm is equal to
A 760 torr
B 760 mmHg
C 101.3 kPa
D all of the above
Correct Answer: all of the above
Which of the following is path funtion?
A Internal energy
B work and heat
C Enthalpy
D Entropy
Correct Answer: work and heat
The system which can exchange matter as well as energy with its surroundings is called____________?
A open system
B Closed system
C Isolated system
D Inert system
Correct Answer: open system
The process in which no heat enters or leave the system known as _____________?
A Isochoric
B Isobaric
C adiabatic
D Isothermal
Correct Answer: adiabatic
Mach is the unit of measurement in stating the speed of a moving object in relation to__________?
A The speed of sound
B The speed of other object
C The speed of light
D The speed of air resistance
Correct Answer: The speed of sound
When two charges are placed in water then the Coulomb force between them reduces to _____________?
A 1/2 times
B 1/3 times
C 1/78 times
D 1/58 times
Correct Answer: 1/78 times
Which one of the following of glass can cut ultraviolet rays?
A Jena Glass
B Soda Glass
C Pyrex Glass
D Crookes Glass
Correct Answer: Crookes Glass
Optics does not deal with ___________?
A Nature of light waves
B Properties of light
C Characteristics of sound
D Lenses and mirrors
Correct Answer: Characteristics of sound
Length, mass, time, intensity of light and amount of substance are examples of ____________?
A Base quantities
B Derived quantities
C Prefixes
D Quartile quantities
Correct Answer: Base quantities
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