Practise All MCQs in Lecturer Physics Past Papers and Syllabus. Attempt multiple-choice questions, check answers and revise related subtopics.
Study All through multiple-choice questions in Lecturer Physics Past Papers and Syllabus. This subtopic contains 342 practice questions. Read the wording carefully, compare the options and attempt an answer before checking the solution in learning mode.
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Answer: 1.12 X 10^5 Nm^2/C
Explanation We know that for a Gaussian surface, flux = q/ε Here, q = 10^-6 C and ε = 8.85 X 10^-12 C/Nm^2 Therefore, flux = 10^-6/8.85 X 10^-12 = 1.12 X 10^5 Nm^2/C.
گاؤس ڈائیورجنس تھیوریم ______ کو تبدیل کرتا ہے؟
Answer: Surface to volume integral
Explanation The Gauss divergence theorem , also known as the divergence theorem, converts: Volume integral to Surface integral It states that the volume integral of the divergence of a vector field over a region is equal to the surface integral of the vector field over the boundary of that region. Mathematically, it is expressed as: ∫∫∫_V (∇⋅F) dV = ∫∫_S F⋅dS
میڈیم جس میں روشنی کی رفتار مستقل رہتی ہے؟
Answer: Homogeneous
Explanation The velocity of light remains constant in a homogeneous medium , where the material properties (such as refractive index ) are uniform throughout. In a heterogeneous medium , variations in composition cause light to change speed and direction.
مندرجہ ذیل میں سے کون سا جوہری ایندھن کی کلڈنگ مواد کے طور پر استعمال نہیں ہوتا ہے؟
Answer: Cadmium
Explanation Nuclear fuel cladding materials should have low neutron absorption and high melting points. Cadmium has a high neutron absorption cross-section, making it unsuitable for cladding.
Answer: Freedom
Explanation Emancipation means آزادی Freedom means آزادی Imprisonment means قید
سورج کی روشنی زمین تک پہنچنے میں کتنا وقت لیتی ہے؟
Answer: 8 min 20 sec
Explanation Sunlight travels at the speed of light (~3 × 10⁸ m/s). Takes 8 minutes 20 seconds on average to reach Earth. Sunlight takes approximately 499 seconds to travel from the Sun to Earth . Distance traveled: 150 million km from Sun to Earth. Moonlight takes only 1.3 seconds to reach Earth. Last verified on 13-03-2026
Answer: De-Broglie
Explanation Louis de Broglie proposed the wave-particle duality of matter. It stating that particles like electrons exhibit wave-like properties . His equation λ = h/p (where λ is wavelength, h is Planck’s constant, and p is momentum) describes the matter waves concept.
ایک پی این جنکشن _____ کے طور پر استعمال کیا جاسکتا ہے؟
Answer: Rectifier
Explanation A PN junction can be used as a rectifier Used to convert alternating current (AC) to direct current (DC) It acts as a one-way valve, allowing current t o flow only in one direction. It switches on (conducts) in forward bias and off (blocks) in reverse bias.
سن 2024 میں کس ملک کو سمر اولمپکس کی میزبانی کی گئی تھی؟
Answer: France
Explanation A total of 329 events held at 2024 Summer Olympics . Host: France, Paris Opening: 26 July 2024 Closing: 11 August 2024 Mascot: Phrygian Cap Official Song: Games Wide Open Last verified on 09-03-2026
مندرجہ ذیل میں سے کون سا بیان غلط ہے؟
Answer: Highly polished mirror surfaces are very good radiators
Explanation The statement " Highly polished mirror surfaces are very good radiators " is wrong.
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