ALL FPSC PAST PAPERS MCQS OF EVERYDAY SCIENCE 2023
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چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
زمین کی سطح کے نیچے وہ مقام جہاں سے زلزلہ شروع ہوتا ہے اسے کیا کہتے ہیں؟
Epicenter
Hypocenter
Tectonic Center
All of these
None of these
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Explanation
Hypocenter is the point beneath the Earth’s surface where the vibrations of an earthquake originates and which corresponds to the location where the motion on a fault surface starts.
عام طور پر انسانی جسم میں کینسر کن تبدیلیوں کی وجہ سے ہوتا ہے؟
Virus
RNA
DNA
All of these
None of these
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Explanation
In general, the cancer in a human body is caused by changes to DNA .
DNA stands for Deoxyribonucleic acid
مصنوعی ذہانت کی اصطلاح کس نے ایجاد کی؟
Albert Einstein
John McCarthy
Geoffrey Hinton
Alan Turing
None of these
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Explanation
John McCarthy is recognized as the father of Artificial Intelligence due to his astounding contribution in the field of Computer Science.
John McCarthy was an American computer scientist
Note : Artificial Intelligence is a branch of Computer science , which aims to create intelligent machines so that machine can think intelligently in the same manner as a human does.
الیکٹران کی کونیی رفتار کیا ہے؟
hn/2π
2π/nh
nh/2π
none
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Explanation
The angular momentum of an electron by Bohr is given by mvr or nh/2π
where v is the velocity ,
n is the orbit in which the electron is revolving , m is the mass of the electron,
and r is the radius of the nth orbit
ٹرانسفارمر کے کام کرنے میں کون سا رجحان شامل ہے؟
induction
mutual induction
conduction
none
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Explanation
A transformer operates on the principles of “e lectromagnetic induction ”, in the form of Mutual Induction.
Mutual induction is the process by which a coil of wire magnetically induces a voltage into another coil located in close proximity to it.
کسی جاندار کے اپنے اردگرد کے ماحول کے ساتھ تعامل کو کہتے ہیں؟
ecology
environmrnt
community
none
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Explanation
The study of the interaction between organisms and t heir surroundings is called ecology .
ecology that deals with the study of interactions between biotic and abiotic factors of the environment
ہائیڈروجن کے کن آئسوٹوپس میں 1 پروٹون اور 2 نیوٹران ہوتے ہیں؟
tritium
helium
deuterium
halogen
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Explanation
Tritium is an isotope of hydrogen that is composed of one proton, two neutrons, and one electron.
The symbol for tritium is 3^H.
The atomic number of tritium is 1
the atomic mass of tritium i s 3.
ایلومینیم پاؤڈ + نائٹریٹ کہا جاتا ہے
Ammonal
Aluminium nitrogen
Nitrate solid
None of these
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Explanation
Aluminium powed + Nitrate Called Ammonal
Ammonal is an explosive made up of ammonium nitrate and aluminium powder, in which the ammonium nitrate functions as an oxidizer and the aluminium as fuel.
The mixture is often referred to as Tannerite , which is a brand of ammonal.
The ammonium nitrate functions as an oxidizer and the aluminium as fuel.
The use of the relatively cheap ammonium nitrate and aluminium makes it a replacement for pure TNT.
Half filled
very wide
partially filled
None of these
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Explanation
The semiconductor band Gap is half-filled.
The term " band gap " refers to the energy difference between the valence band's top and the conduction band's bottom.
The band gap phenomenon occurs when two adjacent allowed bands are not wide enough to span the full range of electron energy levels.
Light Absorbent and Stimulated Emission of Radiations
Light Absorbing Solar Energy Resource
Light Amplification by Stimulated Emission of Radiations
Light Amplification of Singular Emission of Radiations
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Explanation
. LASER stands for Light Amplification by Stimulated Emission of Radiations
LASER types Gas LASER Semiconductor LASER Chemical LASER Liquid or Dye LASER Excimer LASER Properties of LASER
Superior Coherence Superior Monochromatism High Output Superior Directivity
Applications of LASER
LASERs are used in DVD, CD, and Barcode Scanners. Lasers are used in different types of devices, i.e. drilling, cutting,