Physics MCQ for Competitive Exams | Set-68

Physics MCQs for all Competitive Exams SET-68
Physics Multiple Choice question for All Competitive Exams

Physics | General Science Multiple Choice Questions(MCQ)
भौतिक विज्ञान बहुविकल्पीय प्रश्न

Welcome to our exclusive collections of Physics | General science multiple choice questions (MCQs) with answers. Physic| General science is the very important section for competitive exams.
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Physics MCQs for all Competitive Exams SET-68
भौतिक विज्ञान बहुविकल्पीय प्रश्न


Question : 1-10

Question : 1

Sound travels fastest in

[A].   Air
[B].   Water
[C].   Steel
[D].   Vacuum


Question : 2

What is the size of Electron as comapared to Proton and Neutron

[A].   1/355
[B].   1/1236
[C].   1/1836
[D].   1/1923


Question : 3

Which one is the unit of surface tension of a liquid

[A].   newton /m2
[B].   electron volt /cm2
[C].   joule/ mm
[D].   None of the above


Question : 4

The wave of theory of light is based on

[A].   the laws of reflection
[B].   the laws of refraction
[C].   the inverse square law
[D].   Huyghens' principle


Question : 5

At constant pressure, the volume of a fixed mass of a gas is directly proportional to its absolute temperature. It is the statement of

[A].   Boyle's Law
[B].   Charle's Law
[C].   Gay-Lussac's Law
[D].   Avogadro's Law


Question : 6

The wave theory of light can explain

[A].   comptom effect
[B].   photoelectric effect
[C].   black body spectrum
[D].   interference of light


Question : 7

Number of lattices in the orthorhombic system is

[A].   4
[B].   5
[C].   7
[D].   8


Question : 8

The alluminating powers of two sources are compared by

[A].   a spectrometer
[B].   a photometer
[C].   a polarimeter
[D].   a fluxmeter


Question : 9

Atomic packing factor of body centred cubic structure (bcc) is

[A].   0.63
[B].   0.68
[C].   0.69
[D].   0.73


Question : 10

The refractive index of a transparent medium is maximum for

[A].   red light
[B].   violet light
[C].   yellow light
[D].   green light





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