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.

1. By how many times are the Electrostatic forces stronger than the Gravitational Forces for a fixed distance?
[A] 102
[B] 1036
[C] 1012
[D] 2

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2. What is the range of Strong Nuclear force?
[A] Infinite
[B] Very short Subnuclear size
[C] Very short Nuclear size
[D] None

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3. An Electric generator is based on which of the following scientific principles?
[A] Faraday’s law of Electromagnetic Induction
[B] Super Conductivity
[C] Laws of Thermodynamics
[D] Newton’s Law of Motion

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4. Who was the first scientist to discover Electrons?
[A] Albert Einstein
[B] Isaac Newton
[C] J.C. Bose
[D] J.J Thompson

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5. Which of the following units is the smallest in terms of length?
[A] micron
[B] nanometer
[C] fermi
[D] angstrom

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6. What is the S.I. unit for Luminous Intensity?
[A] mole
[B] ampere
[C] candela
[D] weber

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7. Power of lens is measured in which of the following units?
[A] metre
[B] dioptre
[C] lumen
[D] watt

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8. The acceleration at a given instant of time is called as:
[A] Average acceleration
[B] Instantaneous acceleration
[C] Variable acceleration
[D] Zero acceleration

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9. Which of the these physical quantities is a vector quantity?
[A] Temperature
[B] Speed
[C] Gravitational Intensity
[D] Work

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10. Which of the following is NOT correct about an inelastic collision?
[A] Linear momentum is conserved
[B] Kinetic energy is conserved
[C] Total energy is conserved
[D] Some or all the forces involved may be non-conservative in nature

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