R4RIN – MCQs, Mock Tests | Physics G.K Question and Answer

Who invented Scooter?

1. G. Brousa
2. Harison & Kaitlin
3. William Gas Cogin
4. None of the above

✅ Correct Answer: 1

Who among the following Scientist is associated with the invention of the refrigerator?

1. G. Brousa
2. Harison & Kaitlin
3. William Gas Cogin
4. Einstein

✅ Correct Answer: 2

Which of the following scientist is the inventor of the lift?

1. F.G Otis
2. Edison
3. William Gas Cogin
4. Einstein

✅ Correct Answer: 1

Who among the following scientist invented the Microphone?

1. Einstein
2. Edison
3. John & John
4. Janson & Janson

✅ Correct Answer: 4

Powerloom invention is associated with:

1. Devi
2. Johnson Harrison
3. Carl Right
4. Walter Hunt

✅ Correct Answer: 3

The invention of Petrol Car is associated with:

1. Janson & Janson
2. John & Johnson
3. Macmillan
4. Karl Benz

✅ Correct Answer: 4

Which of the following Scientist is affiliated with the invention of the Wireless Telegraphy?

1. Johnson & Johnson
2. Macmillan
3. Compel
4. Marconi

✅ Correct Answer: 4

Which of the following scientist invented the television?

1. J.L Beard
2. Faraday
3. William Gas Cogin
4. Thels

✅ Correct Answer: 1

Who among the following Scientist is associated with the invention of the barometer?

1. H. Devi
2. Torricelli
3. William Gas Cogin
4. L.D Forest

✅ Correct Answer: 2

The invention of aeroplane is associated with:

1. F.G Otis
2. Edison
3. Right Brothers
4. Grahm Bel

✅ Correct Answer: 3

Who invented the Motor Vehicle?

1. James Watt
2. Edison
3. Parsons
4. Asteen

✅ Correct Answer: 4

Who among the following Scientist invented the gramophone?

1. Anerko Fermi
2. George Stefans
3. Edison
4. Walter Hunt

✅ Correct Answer: 3

The Scientist is associated with the invention of the Bi-cycle:

1. Macmillan
2. Dunlop
3. Macmillan
4. Karl Benz

✅ Correct Answer: 1

Who is associated with the invention of the helicopter?

1. Johnson & Johnson
2. Bracket
3. George Wasting House
4. Marconi

✅ Correct Answer: 2

Which Scientist is associated with the invention of the gas engine?

1. Bunsen
2. Daymlar
3. Compel
4. Morse

✅ Correct Answer: 2

The invention of the printing machine is associated with which scientist?

1. Wheeler
2. Robert Mallet
3. Bunsen
4. Kaekstan

✅ Correct Answer: 4

Who invented Acetylene Gas?

1. Berthelot
2. Pascal
3. Richard Drew
4. Ohain

✅ Correct Answer: 1

Who invented atomic bomb?

1. Berthelot
2. Pascal
3. Richard Drew
4. J. Robert Oppenheimer

✅ Correct Answer: 4

Who invented The Law of Refraction of Light?

1. Newton
2. Einstein
3. Pascal
4. Alexander Volta

✅ Correct Answer: 1

Microscope was invented by:

1. Janson & Janson
2. Millikan
3. Soldz
4. Foucalt

✅ Correct Answer: 1

Safety Lamp is a discovery of:

1. K. Onnes
2. H. Devi
3. Fermi
4. L. D Forest

✅ Correct Answer: 2

Radioactivity is invented by:

1. Coolidge
2. Faraday
3. H. Becquarel
4. Briggs

✅ Correct Answer: 3

What is the SI unit of electric charge?

1. Volt
2. Coulomb
3. Ampere
4. ohm

✅ Correct Answer: 2

How much force does one coulomb of electric charge exerts on an equal charge placed at a distance of one metre from it?

1. 9 * 109 Newton
2. 10 * 109 Newton
3. 9 * 108 Newton
4. 8 * 109 Newton

✅ Correct Answer: 1

An electron possesses a negative charge of:

1. 16 * 10-19 C
2. 1.60 * 10-19 C
3. 26 * 10-19 C
4. 1.8 * 10-19 C

✅ Correct Answer: 2

How many electrons taken together make one coulomb?

1. 6.25 * 1018 electrons
2. 3.25 * 1018 electrons
3. 2.25 * 1018 electrons
4. 4.25 * 1018 electrons

✅ Correct Answer: 1

Which of the following is a conductor of electricity?

1. Silver
2. Copper
3. Aluminium
4. All of the above

✅ Correct Answer: 4

Substances through which electricity cannot flow are called:

1. Conductors
2. Insulators
3. Wires
4. Battery

✅ Correct Answer: 2

Which of the following is an insulator?

1. Carbon
2. Rubber
3. Silver
4. Copper

✅ Correct Answer: 2

What should be present in a substance to make it a conductor of electricity?

1. Strongly held electrons
2. Strongly held protons
3. Free electrons
4. Free protons

✅ Correct Answer: 3

Which of the following is an example of static electricity?

1. Glass rod rubbed with silk cloth
2. Ebonite rod rubbed with wool
3. Lightening in the sky
4. All of the above

✅ Correct Answer: 4

What is the work done in moving a unit positive charge from infinity to that point in electric field called?

1. Electric potential
2. Potential difference
3. Electric current
4. Electric circuits

✅ Correct Answer: 1

One ohm is equal to:

1. 1 volt / 1ampere
2. 1 volt / 1 coulomb
3. 1 volt * 1 ampere
4. 1 volt * 1 coulomb

✅ Correct Answer: 1

On the basis of electrical resistance, all the substances can be divided into:

1. Good conductors
2. Resistors
3. Insulators
4. All of the above

✅ Correct Answer: 4

Which of the following are resistors?

1. Silver
2. Copper
3. Aluminium
4. All the above

✅ Correct Answer: 4

What do electricians wear while working with electricity?

1. Rubber handgloves
2. Woollen handgloves
3. Synthetic handgloves
4. Cotton handgloves

✅ Correct Answer: 1

Which of the following factors affect resistance of a conductor?

1. Length of conductor
2. Temperature of conductor
3. Material of conductor
4. All of the above

✅ Correct Answer: 4

What happens to the resistance of a wire when its length is doubled?

1. Gets doubled
2. Becomes half
3. Becomes nil
4. None of the above

✅ Correct Answer: 1

Resistance of a conductor is inversely proportional to:

1. Current
2. Its length
3. Its area of cross-section
4. Potential difference

✅ Correct Answer: 3

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G.K Question and Answer - Physics Set III