SPSC 25 years Past Papers 2001 to 2025

Q1251: Which one of the following principal quantum numbers has largest, s orbital?

مندرجہ ذیل میں سے کون سا پرنسپل کوانٹم نمبر سب سے بڑا ، مداری ہے؟

A. n=4
B. n=3
C. n=2
D. None of these

Q1252: The probability distribution whose mean and standard deviation are equal is _____?

A. Normal
B. None of these
C. Exponential distribution
D. Log-normal distribution

Q1253: As u = (2, -2, 3) and v = (1, -3, 4), then ||-2u + 2v|| is ______?

A. √3
B. √2
C. None of these
D. 2√3

Explanation

Calculation: First, compute -2u + 2v:
- $- 2 u = (- 4, 4, - 6)$
- $2 v = (2, - 6, 8)$
- $- 2 u + 2 v = (- 4 + 2, 4 - 6, - 6 + 8) = (- 2, - 2, 2)$
Norm Calculation: The norm (magnitude) of $- 2 u + 2 v$ is:
$∣ ∣ - 2 u + 2 v ∣ ∣ = \sqrt{(- 2)^{2} + (- 2)^{2} + 2^{2}} = \sqrt{4 + 4 + 4} = \sqrt{12} = 2 \sqrt{3}$

Answer:

Q1254: Samad purchased 20 dozens of toys at the rate of Rs. 375 per dozen. He sold each one of them at the rate of Rs. 33. What was his percentage profit?

A. None of these
B. 5.6
C. 6.5
D. 3.5

Q1255: The Antonym of "Superfluous" is?

A. Sufficient
B. None of these
C. Essential
D. Excessive

Q1256: How many days does the Hajj Pilgrimage last?

حج کی زیارت کتنے دن چلتی ہے؟

A. 3
B. 7
C. 5
D. None of these

Q1257: The Antonym of Crooked is?

A. Straight
B. Curved
C. Bent
D. None of these

Q1258: Cola seeds contains quantities of _____?

کولا بیجوں میں _____ کی مقدار ہوتی ہے؟

A. None of these
B. Morphine
C. Caffeine
D. Nicotine

Q1259: Y = 5x and dx/dt = 2 the day/dt will be _____?

A. 12
B. None of these
C. 11
D. 10

Q1260: Which surah contains the longest verse in the Holy Quran, detailing the laws and principles of financial transactions?

کون سا سورہ قرآن مجید میں سب سے طویل آیت پر مشتمل ہے ، جس میں مالی لین دین کے قوانین اور اصولوں کی تفصیل ہے؟

A. Surah Al-Tawbah
B. None of these
C. Surah An-Nisa
D. Surah Al-Baqarah

✅ Correct: 0 | ❌ Wrong: 0 | 📊 Total Attempted: 0

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SPSC 25 years Past Papers 2001 to 2025

Q1251: Which one of the following principal quantum numbers has largest, s orbital?

Explanation

Q1252: The probability distribution whose mean and standard deviation are equal is _____?

Explanation

Q1253: As u = (2, -2, 3) and v = (1, -3, 4), then ||-2u + 2v|| is ______?

Explanation

Q1254: Samad purchased 20 dozens of toys at the rate of Rs. 375 per dozen. He sold each one of them at the rate of Rs. 33. What was his percentage profit?

Explanation

Q1255: The Antonym of "Superfluous" is?

Explanation

Q1256: How many days does the Hajj Pilgrimage last?

Explanation

Q1257: The Antonym of Crooked is?

Explanation

Q1258: Cola seeds contains quantities of _____?

Explanation

Q1259: Y = 5x and dx/dt = 2 the day/dt will be _____?

Explanation

Q1260: Which surah contains the longest verse in the Holy Quran, detailing the laws and principles of financial transactions?

Explanation

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