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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

The period of a circular motion is given by_______________?
A T = πv
B T = πw
C T = 2πr
D T = 2πr/v
Correct Answer: T = 2πr
One radian is equal to______________?
A 67.3°
B 57.3°
C 87.3°
D 60°
Correct Answer: 57.3°
According to Einstein, the gravitational interaction is possible between_______________?
A material objects only
B material objects and electromagnetic radiation only
C electromagnetic radiations
D none of the above
Correct Answer: material objects and electromagnetic radiation only
The radius of geostationary orbit from the centre of the earth is nearly______________?
A 42000km
B 36000km
C 24000 km
D 18000 km
Correct Answer: 42000km
Geostationary satellite completes one rotation around the earth in_______________?
A 3 hours
B 6 hours
C 12 hours
D 24 hours
Correct Answer: 24 hours
The critical speed of an artificial satellite is_______________?
A 8 Kms-1
B 8.1 Kms-1
C 7.9 Kms-1
D 8 ms-1
Correct Answer: 7.9 Kms-1
A hoop and disc have same mass and radius. Their rotational K.E are related by an equation______________?
A K.E hoop = K.E disc
B K.E hoop = 2K.E disc
C K.E hoop = 1/2K.E disc
D K.E hoop = 4K.E disc
Correct Answer: K.E hoop = 2K.E disc
The rotational K.E of the hoop is equal to the______________?
A its translational K.E
B half than its translational K.E
C double than its translational K.E
D four times than its translational K.E
Correct Answer: its translational K.E
Which of the following is not a correct representation method for prefixes______________?
A 1mm
B 10km
C 1000um
D Both A and B
Correct Answer: 1000um
The number 76.85 is rounded off up to two significant figures as_____________?
A 76.8
B 77
C 76.9
D None of these
Correct Answer: 77
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