SST MATH PHYSICS PAST PAPER 28-02-2021
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چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
- 1923
- 1921
- 1924
- 1922
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- The Khilafat Movement came to an end in 1924 when Mustafa Kemal Atatürk abolished the Ottoman Caliphate.
- The movement started in 1919.
- It was led by Indian Muslim leaders like Maulana Muhammad Ali Jauhar and Maulana Shaukat Ali to protect the Caliphate.
Last verified on 02-04-2026
قائداعظم نے بار ایٹ لاء کا امتحان ______ سے پاس کیا؟
- Oxford
- Lincoln’s Inn
- Cambridge
- Harvard
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Explanation
- Quaid-e-Azam Muhammad Ali Jinnah passed his Bar-at-Law examination on 25 May 1893.
- He studied law at Lincoln’s Inn in London, one of the four Inns of Court.
- After completing his legal training, he returned to India in 1896 and started his legal career in Bombay.
Last verified on 13-03-2026
مندرجہ ذیل میں سے کون سا نبی ابو ال عرب (عربوں کے والد) کے نام سے جانا جاتا تھا؟
- Hazrat Ibrahim (AS)
- Hazrat Ismael (AS)
- Hazrat Yaqoob (AS)
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Hazrat Ismael (AS) is called Abu-ul-Arab (Father of the Arabs) because Arab tribes trace their lineage through him.
He settled in Makkah and married into the Jurhum tribe, giving rise to Arab ancestry.
- At equilibrium (mid) position
- At half amplitude
- Always constant
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
In simple harmonic motion (SHM), the restoring force is given by:
F = -kx
Where:
- F is the restoring force
- k is the spring constant
- x is the displacement from the equilibrium position
The restoring force is minimum when displacement x = 0, i.e., at the equilibrium position.
- 5 N
- 10 N
- 15 N
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Change in momentum = 20 − 5 = 15 kg·m/s
Time = 3 s → Force = 15 / 3 = 5 N
جوڑی کی پیداوار کا رجحان ______ ہے؟
- Ejection of an electron from a nucleus
- Formation of an electron and a positron from γ-rays
- Ejection of an electron from a metal surface when exposed to ultraviolet light
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Pair production occurs when a high-energy γ-ray photon is converted into an electron and a positron near a nucleus.
It is a quantum phenomenon that requires photon energy greater than 1.022 MeV.
- A ∪ B = B ∪ A
- A ∪ B = A ∪ B
- A ∩ B = A ∩ B
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Commutative property means the order doesn’t matter: 𝐴 ∗ 𝐵 = 𝐵 ∗ 𝐴.
Union ∪ is commutative, so 𝐴 ∪ 𝐵 = 𝐵 ∪ 𝐴.
- 40 J
- 30 J
- 20 J
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Spring potential energy is given by U = 1/2kx².
If stretching to distance S gives 10 J, then to stretch to 2S, the energy becomes 1/2k(2S)² = 4×10 = 40 J.
So, additional work = 40−10 = 30 J.
رمضان المبارک کا دوسرا عشرہ ____ کے نام سے جانا جاتا ہے؟
- Ashra-e-Rehmat
- Ashra-e-Maghfirat
- Ashra-e-Najat-e-Naar-e-Jahannum
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
"1st Ashra of Ramadan is "Days of mercy" (Rehmat).
2nd Ashra of Ramadan is "Days of forgiveness" (Maghfirayat).
3rd Ashra of Ramadan is "Days of refuge from hell fire" (Jahanum ke aag sa nijahat).
- The teacher writes a letter.
- The teacher wrote a letter.
- The teacher will write a letter.
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
The sentence is in passive voice (future tense) — "will be written".
Its active voice is: "The teacher will write a letter."
