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
RRB JE Physics Questions with Answers & Explanations
20 Physics questions from the General Science section of RRB JE, 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.
The acceleration due to gravity on Earth is about
- A1.6 m/s²
- B9.8 m/s²
- C8.9 m/s²
- D10.8 m/s²
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Answer: (B) 9.8 m/s²
The SI unit of force is the
- ANewton
- BJoule
- CWatt
- DPascal
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Answer: (A) Newton
Sound cannot travel through
- AWater
- BAir
- CVacuum
- DSteel
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Answer: (C) Vacuum
The bending of light when it passes from one medium to another is called
- ADispersion
- BRefraction
- CReflection
- DDiffraction
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Answer: (B) Refraction
A rainbow is formed due to
- ADispersion and total internal reflection of light
- BOnly reflection
- CPolarisation
- DScattering only
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Answer: (A) Dispersion and total internal reflection of light
Ultrasound has a frequency greater than
- A20 Hz
- B2,000 Hz
- C200 Hz
- D20,000 Hz
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Answer: (D) 20,000 Hz
The SI unit of electrical resistance is the
- AVolt
- BAmpere
- CFarad
- DOhm
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Answer: (D) Ohm
The instrument used to measure electric current is the
- AOhmmeter
- BAmmeter
- CGalvanometer only
- DVoltmeter
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Answer: (B) Ammeter
Absolute zero temperature is
- A−459 °C
- B−273.15 °C
- C−100 °C
- D0 °C
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Answer: (B) −273.15 °C
Ready for the real thing?
Timed General Science test · 30 questions · instant rank
The speed of light in vacuum is about
- A3 × 10⁵ m/s
- B340 m/s
- C3 × 10⁶ m/s
- D3 × 10⁸ m/s
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Answer: (D) 3 × 10⁸ m/s
An electric motor converts
- AElectrical energy into mechanical energy
- BLight into electricity
- CMechanical energy into electrical energy
- DHeat into electricity
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Answer: (A) Electrical energy into mechanical energy
The unit of momentum is
- Akg·m/s
- BJ/s
- Ckg·m/s²
- DN/m
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Answer: (A) kg·m/s
Which lens is used to correct myopia (short-sightedness)?
- AConcave lens
- BCylindrical lens
- CConvex lens
- DBifocal lens
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Answer: (A) Concave lens
The sky appears blue because of
- ARefraction of light
- BReflection of light
- CDispersion of light
- DScattering of light
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Answer: (D) Scattering of light
Which mirror is used as a rear-view mirror in vehicles?
- ACylindrical mirror
- BPlane mirror
- CConcave mirror
- DConvex mirror
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Answer: (D) Convex mirror
Sound cannot travel through
- AAir
- BVacuum
- CSteel
- DWater
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Answer: (B) Vacuum
The SI unit of pressure is the
- APascal
- BNewton
- CJoule
- DBar
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Answer: (A) Pascal
The bending of light when it passes from one medium to another is called
- ADispersion
- BReflection
- CDiffraction
- DRefraction
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Answer: (D) Refraction
Which colour of light has the longest wavelength?
- AGreen
- BViolet
- CRed
- DBlue
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Answer: (C) Red
These are RankerClub practice questions written in the RRB JE pattern. They are not official SSC/IBPS/RRB papers.
