Free Physics Questions for Polytechnic Exams

Polytechnic | Physics QBank

Welcome Aspirants !!!

ScholarWorm welcomes our aspirants who are always hungry for more knowledge. We are here with our Free Physics QBank for Polytechnic Entrance Exams to help our students to practice regularly and perform at best of their ability in their exams.

Instruction to Create Question Set :-

1. The Test Paper is AI generated.

2. On clicking the button below the AI bot creates a set of 20 Questions from the pool of questions that is being updated regularly by our expert faculties.

3. A Timer is set for each Test Set, once time is up the AI will automatically submit the test.

4. New Question Set can be created by going backwards and repeating the above steps.

Note :- Number of Questions and Timer is not customizable in Free QBanks.

Results

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#1. Which of the following converts mechanical energy into eletrical energy ?

Motor

switch

Battery

Generator

#2. rainbow is formed due to _____ of light

Dispersion

Scattering

Reflection

Refraction

#3. A piece of wire of resistanceR is cut into five equal parts. These parts are then connected in parallel. If the equivalent resistance of the combination is R’ , the ratio R/R' is

1/25

1/5

#4. A current through a horizontal power line flows in East to west direction. The direction of magnetic field at a point directly below the power line is

East to west

South to North

North to South

West to East

#5. The twinkling of star is due to

Atmospheric dispersion

Atmospheric rarefaction

Atmospheric diffraction

Scattering of light by particles in atmosphere

#6. Ohm's law is valid for

Metal conductors

Semiconductors

gaseous conductors

Isulators

#7. One ampere current is

2 Coulomb / second²

Coulomb × second²

Coulomb / second

Coulomb × second

#8. The imaginary line passing through the center of curvature and pole of a speherical mirror is

Principal focus

Principal axis

Parallel ray

Focal length

#9. The magnetic field of a solenoid carrying a current is similar to that of a

Electric Motor

Bar Magnet

Resistor

Iron Core

#10. The resistance of a wire is

Inversely proportional to its area of cross section

Independent of its area of cross section

Proportional to square of its area of cross section

Directly proportional to its area of cross section

#11. The safety device used for protecting the circuits from short circuiting is

Resistor

Generator

Motor

Fuse

#12. SI unit of power of a lens is

Metre

Dioptre

Watt

Centimeter

#13. The number of field lines passing through the the plane of area 'A' perpendicular to the magnetic feild is called

Magnetic induction

Magnetic flux

Magnetic flux density

solenoid

#14. The basic phenomenon of working of an electric generator is

Electromagnetic Induction

Hall effect

Photoelectric effect

Ferroelectric effect

#15. Potential differences between two points is equal to

Work done / charge

Charge / work done

Charge² / work done

Charge × work done

#16. The scattering of light by the colloidal particles is

Thermal effect

Balwin effect

Tyndall effect

Raman effect

#17. The human eye can focus objects at different distances by adjusting the focal length of the eye lens. This is called

Presbyopia

Far sightedness

Near Sightedness

Accommodation

#18. At the time of short circuit, the current in the circuit

Increases heavily

Reduces substantially

Vary continuously

Does not charge

#19. Induction stove works on the principle of

Switch

Generator

Fuse

Electro magnetic induction

#20. According to Flaming’s left hand rule, the fore finger is pointed towards the direction of

Electric current

Force exerted

Motion of the conductor

Magnetic field

Finish

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Polytechnic | Physics QBank

Welcome Aspirants !!!

Instruction to Create Question Set :-

Results

#1. Which of the following converts mechanical energy into eletrical energy ?

#2. rainbow is formed due to _____ of light

#3. A piece of wire of resistanceR is cut into five equal parts. These parts are then connected in parallel. If the equivalent resistance of the combination is R’ , the ratio R/R' is

#4. A current through a horizontal power line flows in East to west direction. The direction of magnetic field at a point directly below the power line is

#5. The twinkling of star is due to

#6. Ohm's law is valid for

#7. One ampere current is

#8. The imaginary line passing through the center of curvature and pole of a speherical mirror is

#9. The magnetic field of a solenoid carrying a current is similar to that of a

#10. The resistance of a wire is

#11. The safety device used for protecting the circuits from short circuiting is

#12. SI unit of power of a lens is

#13. The number of field lines passing through the the plane of area 'A' perpendicular to the magnetic feild is called

#14. The basic phenomenon of working of an electric generator is

#15. Potential differences between two points is equal to

#16. The scattering of light by the colloidal particles is

#17. The human eye can focus objects at different distances by adjusting the focal length of the eye lens. This is called

#18. At the time of short circuit, the current in the circuit

#19. Induction stove works on the principle of

#20. According to Flaming’s left hand rule, the fore finger is pointed towards the direction of

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