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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ستاروں کے رنگ ان کے _____ کی وجہ سے ہیں؟
Answer: Temperature
Explanation The color of a star is primarily determined by its surface temperature. Stars come in a range of colors, including red, orange, yellow, white, and blue , which are indicative of their surface temperatures. The hotter the star, the bluer it appears, while the cooler the star, the redder it appears.
کھمبوں پر برف کا پگھلنا ______ کی وجہ سے ہے؟
Answer: Global Warming
Explanation Global warming increases Earth's temperature, causing ice at the poles to melt. It results from greenhouse gases like CO₂ trapping heat in the atmosphere.
پاراچنارکس کا مرکزی شہر ہے
Answer: Khyber Agency
Explanation Parachinar is a town and the capital of the Kurram District in the province of Khyber Pakhtunkhwa, Pakistan. It is mainly inhabited by Pashtun . Parachinar is situated on the west of Peshawar Parachinar is the closest point in Pakistan to Kabul .
سارک کے ممبر کتنے ممالک ہیں؟
Answer: 8
Explanation South Asian Association for Regional Cooperation (SAARC) Member Countries ( 8 ): Afghanistan, Bangladesh, Bhutan, India, Maldives, Nepal, Pakistan, Sri Lanka Founded: 8 December 1985 Headquarters: Kathmandu, Nepal Official Language: English Purpose: Promote regional cooperation, economic growth, and cultural exchange among South Asian nations Last verified on 15-01-2026
اینٹروپی میں تبدیلی _____ کے لئے صفر ہے؟
Answer: Reversible adiabatic processes
Explanation In a reversible adiabatic process , no heat is exchanged with the surroundings ( Q = 0 ), so the change in entropy ( ΔS ) is zero. Entropy change is linked to heat transfer, and since no heat enters or leaves, entropy remains constant.
زلزلے کے مساوی اثرات کا سامنا کرنے والے مقامات کو _____ کہا جاتا ہے؟
Answer: Seismic lines
Explanation Seismic lines (or Isoseismal lines ) are imaginary lines on a map that connect points experiencing the same intensity of an earthquake. These lines help in studying the distribution of earthquake impact over a region.
زمین کی سطح سے فرار کی رفتار ______ ہے؟
Answer: 11.2 km/sec
Explanation Escape velocity is the minimum speed required for an object to escape Earth's gravitational field without further propulsion. On Earth , this velocity is 11.2 km/s . It calculated using the formula vₑ = √(2GM/R) , where G is the gravitational constant, M is Earth's mass, and R is its radius.
کشش ثقل کے بڑے پیمانے پر اندرونی بڑے پیمانے پر تناسب ______ کے برابر ہے؟
Answer: 1
Explanation Inertial mass measures an object's resistance to acceleration when a force is applied. Gravitational mass determines the strength of the gravitational force acting on an object. According to the equivalence principle , inertial mass and gravitational mass are always equal , making their ratio 1 .
Answer: Spherical shell
Explanation The variation of Electric field (E) with distance (r) is observed as 1/r² for a spherical shell. This is consistent with Gauss's Law for a spherical shell .
گونج میں سیریز ایل سی آر سرکٹ کے لئے پاور فیکٹر کیا ہے؟
Answer: 1
Explanation At resonance in a series LCR circuit, the inductive reactance (XL) equals the capacitive reactance (XC), so the impedance (Z) is equal to the resistance (R). Z = R The power factor (PF) is the ratio of the real power (P) to the apparent power (S): PF = P / S = R / Z Since Z = R at resonance, the power factor is: PF = R / R = 1
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