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# Physics Objective Questions For Competitive Exams – Part 3

## Physics Objective Questions For Competitive Exams

Physics – 3

Learn Physics Objective Questions For Competitive Exams | IBPS | RRB’s | Group 1 2 3

Study of vision

Speconlogy

Opthnology

Opthicology

According to Newton Corpuscular theory, light particles move with high speed through

denser medium and less speed in rare medium

rare medium and less speed in denser medium

both medium

According to Huygens’s wave theory, light propagates in the form of

Electromagnetic waves

Mechanical waves

Transverse waves

Lights wave are

Mechanical waves

Electromagnetic waves

Transverse waves

Quantum theory of radiation is proposed by

Newton

Max planck

Galileo

Properties of Light

Refraction

Relfection

All the above

Speed of light, determined by

Galelio

Foucault

Newton

Time taken by the light rays to reach the Earth is

8.5 mins

8.4 mins

8.2 mins

Time taken by light rays to travel from the surface of the moon to the Earth

1.36 secs

1.27 secs

1.47 secs

Speed of the light

Min in Diamond and Max in Air

Min in Air and Max in Diamond

Min in Diamond and Max in Water

Raman effect is based on

Light year means

Distance traveled by beam of light in month

Distance traveled by beam of light in year

Distance traveled by beam of laser light in year

One light year means

9.4×10¹² km

9.4×10¹⁴ km

9.4×10¹⁷ km

Smallest unit to measure either distance or length,Fermi

1 Fermi = 10⁻¹⁵ m

1 Fermi = 10⁻¹¹ m

1 Fermi = 10⁻¹² m

Paralastic second, unit to measure the separation distance between any two stars

1 Par sec= 3.26 light year

1 Par sec= 1.26 light year

1 Par sec= 2.26 light year

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Physics Objective Questions For Competitive Exams

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