# General Science - Physics MCQs

Physics Objective (Multiple Choice) General Knowledge & General Science Questions & Answers for SSC-CGL, UPPSC, NDA, CDS and all one day examinations of India. These questions are part of GKToday’s 35000+ MCQs Bank Course in GKToday Android App

21. Two satellites, A having mass of 500 kgs and B having mass of 1200 kgs, are launched from earth. Which of these will have a greater orbital velocity if the radius of orbit is same for both?

[A] Satellite A
[B] Satellite B
[C] Both satellites will have the same orbital velocity
[D] Cant be determined

22. Which of these represent the Angular momentum of a satellite?

[A] mvr
[B] ma
[C] mr
[D] mvh

23. What is the unit of Stress?

[A] N/m
[B] Kg/m
[C] Nm
[D] It has no units

24. Which of the following is the correct equivalent of 1 atmosphere?

[A] 1 atmosphere = 1.013 × 105Pa
[B] 1 atmosphere = 1.013 × 104Pa
[C] 1 atmosphere = 1.013 × 103Pa
[D] 1 atmosphere = 1.013 × 102Pa

25. What happens to a body when its density is greater than the density of the fluid?

[A] it floats
[B] it sinks
[C] it stays at rest
[D] None of the above

26. What is the phase of a vibrating particle at t = 0 known as?

[A] epoch
[B] eon
[C] path difference
[D] period

27. In which of the following positions is the potential energy minimum in S.H.M?

[A] Extreme position
[B] Mean position
[C] can be at extreme or mean position
[D] None of the above

28. What will be the spring constant of each part if the spring of force constant k is divided in to n equal parts?

[A] k
[B] k/n
[C] nk
[D] kn

29. Which of these means opposite phase of particles?

[A] phase difference between the particle is an odd multiple of π
[B] if the path difference is an odd multiple of (λ / 2)
[C] if the time interval is an odd multiple of T/2
[D] All of the above