Which mirror is used as a rear-view mirror in vehicles?
- ACylindrical mirror
- BConvex mirror
- CConcave mirror
- DPlane mirror
Show answer
Answer: (B) Convex mirror
RPSC RAS Physics Questions with Answers & Explanations
20 Physics questions from the General Science section of RPSC RAS, 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 lens is used to correct myopia (short-sightedness)?
- ACylindrical lens
- BBifocal lens
- CConvex lens
- DConcave lens
Show answer
Answer: (D) Concave lens
The bending of light when it passes from one medium to another is called
- ADispersion
- BRefraction
- CReflection
- DDiffraction
Show answer
Answer: (B) Refraction
The SI unit of power is the
- AWatt
- BAmpere
- CVolt
- DJoule
Show answer
Answer: (A) Watt
Which colour of light has the longest wavelength?
- AViolet
- BBlue
- CRed
- DGreen
Show answer
Answer: (C) Red
The acceleration due to gravity on Earth is about
- A1.6 m/s²
- B10.8 m/s²
- C8.9 m/s²
- D9.8 m/s²
Show answer
Answer: (D) 9.8 m/s²
Which is a good conductor of electricity?
- ARubber
- BWood
- CGlass
- DCopper
Show answer
Answer: (D) Copper
An electric motor converts
- AHeat into electricity
- BLight into electricity
- CElectrical energy into mechanical energy
- DMechanical energy into electrical energy
Show answer
Answer: (C) Electrical energy into mechanical energy
Absolute zero temperature is
- A−459 °C
- B−273.15 °C
- C0 °C
- D−100 °C
Show answer
Answer: (B) −273.15 °C
The SI unit of pressure is the
- ABar
- BNewton
- CPascal
- DJoule
Show answer
Answer: (C) Pascal
Ready for the real thing?
Timed General Science test · 27 questions · instant rank
Which lens is used to correct myopia (short-sightedness)?
- ABifocal lens
- BCylindrical lens
- CConcave lens
- DConvex lens
Show answer
Answer: (C) Concave lens
Absolute zero temperature is
- A−273.15 °C
- B−459 °C
- C−100 °C
- D0 °C
Show answer
Answer: (A) −273.15 °C
Which is a good conductor of electricity?
- ACopper
- BGlass
- CRubber
- DWood
Show answer
Answer: (A) Copper
The SI unit of electrical resistance is the
- AFarad
- BOhm
- CVolt
- DAmpere
Show answer
Answer: (B) Ohm
The SI unit of force is the
- APascal
- BWatt
- CNewton
- DJoule
Show answer
Answer: (C) Newton
The SI unit of power is the
- AJoule
- BWatt
- CVolt
- DAmpere
Show answer
Answer: (B) Watt
The SI unit of pressure is the
- ANewton
- BBar
- CJoule
- DPascal
Show answer
Answer: (D) Pascal
The sky appears blue because of
- AScattering of light
- BReflection of light
- CRefraction of light
- DDispersion of light
Show answer
Answer: (A) Scattering of light
Ultrasound has a frequency greater than
- A2,000 Hz
- B200 Hz
- C20 Hz
- D20,000 Hz
Show answer
Answer: (D) 20,000 Hz
The speed of light in vacuum is about
- A340 m/s
- B3 × 10⁵ m/s
- C3 × 10⁶ m/s
- D3 × 10⁸ m/s
Show answer
Answer: (D) 3 × 10⁸ m/s
These are RankerClub practice questions written in the RPSC RAS pattern. They are not official SSC/IBPS/RRB papers.
