Explanation

حروفِ استفہام وہ الفاظ ہوتے ہیں جن کے ذریعے سوال کیا جاتا ہے، جیسے: کب، کیا، کیوں، کون، کہاں۔

جملہ "تم کب بازار جاؤ گے؟" میں "کب" سوال کرنے کے لیے استعمال ہوا ہے، اس لیے یہ حرفِ استفہام ہے۔

Last verified on 14-10-2026

Explanation

• Kilometers per second: ≈ 300,000 km/s
• Speed in vacuum: 299,792,458 m/s
• Approximate value: 3 × 10⁸ m/s
• Symbol: c
• Distance traveled in 1 second: About 300,000 km
• Light from the Sun takes about 8 minutes 20 seconds to reach the Earth.

Last verified on 16-05-2026

Explanation

• Rohtas Fort near Jhelum was built by Sher Shah Suri.
• He was the founder of the Suri Empire in India.
• It is a 16th-century fortress.
• It is located near the city of Dina in Jhelum.
• The construction started in 1541.
• It has 14 gates.

Last verified on 01-05-2026

Explanation

• The 1973 Constitution of Pakistan contains 280 articles.
• It is the current and permanent constitution of Pakistan.
• It came into effect on 14 August 1973.
• It was approved during the government of Zulfiqar Ali Bhutto.
• It provides the basic legal framework of the state.

Additional information:

• 1956 Constitution: 234 articles, 13 parts, 6 schedules
• 1962 Constitution: 250 articles, 12 parts, 3 schedules

Last verified on 11-06-2026

Explanation

Explanation

• The first nuclear power plant was established in Karachi, 
• With the help of Canada 
• KANUPP is Pakistan's first nuclear power plant,
• Inaugurated on November 28, 1972,
• Total gross capacity of 137 MW.

Additional information

• K2 & K3 with the help of China 
  
• K2  started on 21 May 2021 and has an 1100 MW capacity.
• K3 is expected to start in 2022.

Last updated 18-07-2026 by NA

Explanation

• Pakistan conducted a series of nuclear tests on 28 May 1998 at the Chagai test site, in Balochistan.
• 5 Nuclear tests were conducted by Pakistan at 15:15 hrs PST on 28 May 1998.
• The tests were performed at Ras Koh Hills in the Chagai District of Balochistan Province.
• Chagai-I was Pakistan's first public test of nuclear weapons.

Additional information:

• Chagai-II is the codename assigned to the second atomic test conducted by Pakistan, carried out on 30 May 1998.
• These tests followed the Chagai-I series.
• The test site was Kharan Desert, Pakistan.
• The number of tests is 1.

Last verified on 30-03-2026

Explanation

• MS-DOS: Microsoft Disk Operating System
• Developed by: Microsoft
• Designed for: x86-based personal computers
• Interface: Command-line interface (CLI)
• IBM version: IBM PC DOS
• DOS: A term also used for MS-DOS-compatible operating systems.

Explanation

• Total members: 32 (30 European & 2 North American countries)
• NATO stands for the North Atlantic Treaty Organization
• Founded: 4 April 1949 (Washington, USA)
• Headquarters: Brussels, Belgium
• Latest Member: Finland
• Type: Military Alliance
• Official Languages: English & French
• Founding members: 12
• Pakistan: Not a NATO member
  
• Member Muslim country: Turkiye 
• Last Member: On 7 March 2024, Sweden became the 32nd member.

List of NATO member countries

1.       Albania

2.       Belgium

3.       Bulgaria

4.       Canada

5.       Croatia

6.       Czechia

7.       Denmark

8.       Estonia

9.       France

10.   Germany

11.   Greece

12.   Hungary

13.   Iceland

14.   Italy

15.   Latvia

16.   Lithuania

17.   Luxembourg

18.   Montenegro

19.   Netherlands

20.   North Macedonia

21.   Norway

22.   Poland

23.   Portugal

24.   Romania

25.   Slovakia

26.   Slovenia

27.   Spain

28.   Turkiye

29.   United Kingdom

30.   United States

31.   Finland 2023

32.  Sweden 2024

Last updated by NA on 22-April-2026

Explanation

• Light Year is the distance that light can travel in one year.
• The distance light travels in one year is known as light year.
• 1 light year is equal to 9.5 x 10¹²km.

Last verified on 30-03-2026