All MCQs - Lecturer Physics Past Papers and Syllabus Practice | PakExamPoint

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All MCQs and revision practice

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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All: questions and answer review

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111. Idiom: To have sticky fingers means?

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Answer: Being a thief

Explanation To have sticky fingers is an idiom . To have sticky fingers means چوری کی عادت

112. The current through an inductance follows ______?

انڈکٹنس کے ذریعے کرنٹ ______ کی پیروی کرتا ہے؟

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Answer: An exponential growth

Explanation When current flows through an inductance , it builds up gradually due to the back electromotive force (EMF) induced by the changing current. This results in an exponential growth of the current over time.

113. The substances which can be strongly magnetized are called _______?

جن مادوں کو سختی سے مقناطیسی بنایا جاسکتا ہے اسے _______ کہا جاتا ہے؟

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Answer: Ferromagnetic

Explanation Ferromagnetic substances can be strongly magnetized due to the alignment of their atomic dipoles in the same direction. Common examples include iron, cobalt, and nickel .

114. Radioactivity is associated with ______?

ریڈیو ایکٹیویٹی ______ کے ساتھ وابستہ ہے؟

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Answer: Decay of Nucleus

Explanation Radioactivity is the spontaneous decay of an unstable atomic nucleus . It emitting radiation such as alpha, beta, or gamma rays . This process occurs in radioactive elements like uranium and radium , leading to nuclear transformation over time.

115. The parameters that Kepler’s Law of period relates to?

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Answer: The semi-major axis and the time period

Explanation The parameters that Kepler’s Law of period relates to are " the semi-major axis and the time period ."

116. Which of the following series of hydrogen falls in the infrared region?

اورکت خطے میں ہائیڈروجن کی مندرجہ ذیل سیریز میں سے کون سا سلسلہ آتا ہے؟

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Answer: Pfund

Explanation The Pfund series consists of hydrogen spectral lines that fall in the infrared region , with electron transitions to the fifth energy level (n = 5) . Other series : Lyman (UV, n = 1) Balmer (Visible, n = 2) Brackett (Infrared, n = 4)

117. A torque of 2 x 10^-4 Nm is applied to produce an angular acceleration of 4rad/s^2 in a rotating body. What is the moment of inertia of the body?

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Answer: 0.5 × 10^-4 kgm^2

Explanation To find the moment of inertia (I) of the rotating body, we can use the formula: τ = I × α where τ is the torque, I is the moment of inertia, and α is the angular acceleration. Given: τ = 2 × 10^-4 Nm α = 4 rad/s^2 Rearranging the formula to solve for I: I = τ / α = (2 × 10^-4 Nm) / (4 rad/s^2) = 0.5 × 10^-4 kgm^2

118. Ghazwa-e-Badr occurred in which hijrah?

غزوہ بدر کس ہجری میں ہوا؟

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Answer: 2nd

Explanation " Badr " means " full moon " in Arabic. The Battle of Badr , also called Furqan . The Battle of Badr is also known as The Day of the Criterion. Day of the Criterion means کسوٹی کا دن It took place on Tuesday, 13 March 624 CE (17 Ramadan, 2 AH ) near the city of Badr . Prophet Muhammad SAW , commanding his Sahaba, defeated the Quraysh army led by Abu Jahl (Amr ibn Hishām). The Kufar forces numbered 1,000 . It was the first battle of Islam , with 313-317 Muslims. The Muslim forces included 82-85 Muhajirun and 231 Ansar ( 61 from Aws and 170 from Khazraj ). They had 2 horses and 70 camels. Fourteen Muslims were martyred , while 70 Kufar were killed and 70 captured. Surah Al-Anfal mentions that Allah promised to reinforce the Muslims with 1,000 angels. Last verified on 09-05-2026

119. The fundamental frequency of string stretched with a weight of 4kg is 256 Hz. The weight required to produce its octave is _____?

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Answer: 16 kg wt

Explanation The frequency of a stretched string is proportional to the square root of the tension. To produce an octave (double frequency) , the tension must increase fourfold. Since the original tension is from 4 kg , the required tension is 4 × 4 = 16 kg wt .

120. Bali is an island of _____?

بالی سمندر کس ملک میں واقع ہے؟

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Answer: Indonesia

Explanation Bali is an island of Indonesia Bali see situated between Indonesia's islands of Lombok and Java.

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