General Science - Physics MCQs

Physics Objective (Multiple Choice) General Knowledge & General Science Questions & Answers for SSC-CGL, UPPSC, UPSC, NDA, CDS and UPSC Civil Services Prelims Examinations.

61. Which of the following factors affect the Surface Tension?

[A] Nature of liquid
[B] Area of Surface
[C] Both a and b
[D] None of the above

62. When will the height of water in capillary tube be minimum?

[A] When water temperature is 0° C
[B] When water temperature is 4° C
[C] When water temperature is -4° C
[D] None of the above

63. What will be the general value of angle of contact when the liquid does not wet the solid?

[A] acute
[B] obtuse
[C] zero
[D] 90°

64. Which of the following is NOT an example of capillary action?

[A] Rise of ink in the fine pores of blotting paper
[B] soaking of water by a towel
[C] Wood swells in rainy season due to rise of moisture
[D] None of the above

65. Which of the following represents the Density of a material?

[A] Mass/weight
[B] Mass/Length
[C] Mass/Volume
[D] Mass/Area

66. What is the density of whole blood at STP?

[A] 3.57 × 103 kg m–3
[B] 1.06 × 103 kg m–3
[C] 5.55 × 103 kg m–3
[D] 2

67. What is the SI unit of viscosity?

[A] candela
[B] poiseiulle
[C] Newton/m
[D] No units

68. Which of these is correct about Simple Harmonic Motion?

[A] Restoring force is directly proportional to the displacement from mean position
[B] Restoring force is equal to the displacement from mean position
[C] Restoring force is inversely proportional to the displacement from mean position
[D] Restoring force is half of the displacement from mean position

69. What is the oscillation in which the loss of oscillator is compensated by the supplying energy from an external source known as?

[A] Free oscillation
[B] Maintained oscillation
[C] Forced oscillation
[D] Damped oscillation