Newton's first law of motion is also called the law of
- AAcceleration
- BMomentum
- CInertia
- DGravitation
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Answer: (C) Inertia
BPSC 70th Physics Questions with Answers & Explanations
20 Physics questions from the General Science section of BPSC 70th, each with the correct answer and a worked explanation. Try each question first, then tap Show answer to check. When you're ready, take the timed chapter-wise test to see your all-India rank.
Which is a good conductor of electricity?
- ACopper
- BRubber
- CGlass
- DWood
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Answer: (A) Copper
The bending of light when it passes from one medium to another is called
- AReflection
- BRefraction
- CDispersion
- DDiffraction
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Answer: (B) Refraction
The instrument used to measure atmospheric pressure is the
- ABarometer
- BAmmeter
- CThermometer
- DHygrometer
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Answer: (A) Barometer
Sound cannot travel through
- ASteel
- BAir
- CWater
- DVacuum
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Answer: (D) Vacuum
The sky appears blue because of
- ARefraction of light
- BScattering of light
- CReflection of light
- DDispersion of light
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Answer: (B) Scattering of light
The SI unit of power is the
- AJoule
- BWatt
- CAmpere
- DVolt
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Answer: (B) Watt
The SI unit of force is the
- ANewton
- BJoule
- CWatt
- DPascal
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Answer: (A) Newton
The unit of momentum is
- AJ/s
- Bkg·m/s²
- CN/m
- Dkg·m/s
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Answer: (D) kg·m/s
The SI unit of work and energy is the
- APascal
- BJoule
- CNewton
- DWatt
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Answer: (B) Joule
Ready for the real thing?
Timed General Science test · 27 questions · instant rank
Ultrasound has a frequency greater than
- A20 Hz
- B20,000 Hz
- C200 Hz
- D2,000 Hz
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Answer: (B) 20,000 Hz
An electric motor converts
- AHeat into electricity
- BMechanical energy into electrical energy
- CLight into electricity
- DElectrical energy into mechanical energy
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Answer: (D) Electrical energy into mechanical energy
Which lens is used to correct myopia (short-sightedness)?
- ACylindrical lens
- BBifocal lens
- CConcave lens
- DConvex lens
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Answer: (C) Concave lens
A rainbow is formed due to
- AOnly reflection
- BScattering only
- CPolarisation
- DDispersion and total internal reflection of light
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Answer: (D) Dispersion and total internal reflection of light
Which mirror is used as a rear-view mirror in vehicles?
- AConvex mirror
- BPlane mirror
- CCylindrical mirror
- DConcave mirror
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Answer: (A) Convex mirror
The SI unit of work and energy is the
- ANewton
- BPascal
- CJoule
- DWatt
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Answer: (C) Joule
The SI unit of pressure is the
- ABar
- BJoule
- CNewton
- DPascal
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Answer: (D) Pascal
The SI unit of frequency is the
- ADecibel
- BTesla
- CHertz
- DWatt
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Answer: (C) Hertz
The speed of light in vacuum is about
- A3 × 10⁸ m/s
- B340 m/s
- C3 × 10⁵ m/s
- D3 × 10⁶ m/s
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Answer: (A) 3 × 10⁸ m/s
Which is a good conductor of electricity?
- AWood
- BCopper
- CRubber
- DGlass
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Answer: (B) Copper
These are RankerClub practice questions written in the BPSC 70th pattern. They are not official SSC/IBPS/RRB papers.
