Which colour of light has the longest wavelength?
- AGreen
- BBlue
- CRed
- DViolet
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Answer: (C) Red
DSSSB PRT/TGT Physics Questions with Answers & Explanations
19 Physics questions from the General Awareness section of DSSSB PRT/TGT, 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 SI unit of pressure is the
- ABar
- BPascal
- CNewton
- DJoule
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Answer: (B) Pascal
Sound cannot travel through
- AVacuum
- BAir
- CSteel
- DWater
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Answer: (A) Vacuum
The SI unit of electrical resistance is the
- AOhm
- BVolt
- CFarad
- DAmpere
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Answer: (A) Ohm
The instrument used to measure atmospheric pressure is the
- ABarometer
- BThermometer
- CAmmeter
- DHygrometer
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Answer: (A) Barometer
The SI unit of force is the
- AJoule
- BWatt
- CPascal
- DNewton
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Answer: (D) Newton
Which colour of light has the longest wavelength?
- AViolet
- BRed
- CGreen
- DBlue
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Answer: (B) Red
An electric motor converts
- AElectrical energy into mechanical energy
- BLight into electricity
- CHeat into electricity
- DMechanical energy into electrical energy
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Answer: (A) Electrical energy into mechanical energy
The SI unit of power is the
- AAmpere
- BVolt
- CWatt
- DJoule
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Answer: (C) Watt
A rainbow is formed due to
- AOnly reflection
- BScattering only
- CDispersion and total internal reflection of light
- DPolarisation
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Answer: (C) Dispersion and total internal reflection of light
Ready for the real thing?
Timed General Awareness test · 20 questions · instant rank
The bending of light when it passes from one medium to another is called
- ARefraction
- BDiffraction
- CReflection
- DDispersion
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Answer: (A) Refraction
Absolute zero temperature is
- A−459 °C
- B−273.15 °C
- C0 °C
- D−100 °C
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Answer: (B) −273.15 °C
Which is a good conductor of electricity?
- AWood
- BGlass
- CRubber
- DCopper
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Answer: (D) Copper
The speed of light in vacuum is about
- A340 m/s
- B3 × 10⁵ m/s
- C3 × 10⁸ m/s
- D3 × 10⁶ m/s
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Answer: (C) 3 × 10⁸ m/s
Which lens is used to correct myopia (short-sightedness)?
- AConvex lens
- BConcave lens
- CBifocal lens
- DCylindrical lens
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Answer: (B) Concave lens
The instrument used to measure electric current is the
- AAmmeter
- BVoltmeter
- COhmmeter
- DGalvanometer only
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Answer: (A) Ammeter
The sky appears blue because of
- ARefraction of light
- BScattering of light
- CDispersion of light
- DReflection of light
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Answer: (B) Scattering of light
Which mirror is used as a rear-view mirror in vehicles?
- APlane mirror
- BCylindrical mirror
- CConcave mirror
- DConvex mirror
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Answer: (D) Convex mirror
Which is a good conductor of electricity?
- AWood
- BRubber
- CCopper
- DGlass
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Answer: (C) Copper
These are RankerClub practice questions written in the DSSSB PRT/TGT pattern. They are not official SSC/IBPS/RRB papers.
