Explanation

• Name: Battle of the Camel (Jang-e-Jamal)
• Year: 656 CE / 36 AH
• Place: Basra, Iraq
• Parties: Hazrat Ali (RA) vs Hazrat Aisha (RA), Talha & Zubair (RA)
• Cause: Demand for qisas (justice) for Hazrat Usman (RA)

Last verified on 23-06-2026

Explanation

• Name: Juwayriya bint al-Harith (RA)
• Tribe: Banu Mustaliq (a branch of Khuza'ah)
• Father: Al-Harith ibn Abi Dirar
• Marriage with Prophet Muhammad (PBUH): 5 AH (627 CE)
• Status: One of the Mothers of the Believers (Umm al-Mu’minin)

Last verified on 23-06-2026

Explanation

• Solar plates consist of photovoltaic (PV) cells.
• PV cells convert sunlight directly into electrical energy.
• These cells work on the photovoltaic effect. 
• They are usually made of semiconductor materials like silicon.

Additional information:

• Discovered photovoltaic effect: 1839 by Edmond Becquerel

Common types of solar cells:

1. Monocrystalline silicon cells
2. Polycrystalline silicon cells
3. Thin-film solar cells

Last verified on 23-06-2026

Explanation

• The Mongols under Hulagu Khan ended the Abbasid Caliphate in 1258 AD by capturing Baghdad, Iraq.
• He was a grandson of Genghis Khan.
• Last Abbasid Caliph: Al-Musta'sim Billah (1242–1258)
• Abbasid Caliphate duration: 750–1258 AD

Last verified on 23-06-2026

Explanation

• On average, the human body contains about 60–70% water.
• Adult males: 60–65%
• Adult females: 50–60%
• Infants: ~75%
• Main functions: transport, digestion, temperature regulation

Last verified on 23-06-2026

Explanation

• Rose is a noun (a type of flower).
• It is also the past form of the verb “rise”.

Last verified on 23-06-2026

Explanation

مکمل محاورہ ہے: رات گئی بات گئی۔

اس کا مطلب ہے کہ جو بات یا وقت گزر گیا، وہ واپس نہیں آ سکتا۔

یہ محاورہ گزری ہوئی بات کو بھول جانے کے مفہوم میں استعمال ہوتا ہے۔

Last verified on 23-06-2026

Explanation

• Sir Mian Abdul Rashid was the first Chief Justice of Pakistan.
• From June 27, 1949, to June 29, 1954
• Birth: 29 June 1889, Lahore
• Death: 6 November 1981, Islamabad (aged 92)
• Appointed By: Muhammad Ali Jinnah on August 15, 1947
• Awards: Knight Bachelor, Star of India, Hilal-e-Pakistan

Additional information:

• Longest-serving Chief Justice: Mohammad Haleem
• Shortest-serving Chief Justice: Muhammad Shahabuddin

Last verified on 14-06-2026

Explanation

Let the 3-digit number be abc = 100a + 10b + c  

Reversed = cba = 100c + 10b + a  

Given: reversed - original = 297  

(100c + 10b + a) - (100a + 10b + c) = 297  

99c - 99a = 297 → 99(c - a) = 297 → c - a = 3  

Also given: a + c = 7  

Solve:  

a + c = 7  

c - a = 3  

Add both: 2c = 10 → c = 5  

Then a = 7 - 5 = 2  

Product of first and third digits = a × c = 2 × 5 = 10.

Last verified on 23-06-2026

Explanation

• Regression Testing checks that new changes do not break or damage existing code.
• It ensures previous features, design, and functionality remain stable.
• It is mainly used after updates or bug fixes.

Last verified 23-06-2026