Explanation

• Atoms of the same element with different numbers of neutrons are called isotopes.
• Atoms of the same element have the same number of protons and electrons but different numbers of neutrons.

Last verified on 09-11-2026

Explanation

• Ctrl + M → Increase Left Indent

Additional information:

• Ctrl + Shift + M → Decrease Left Indent
• Ctrl + N → New Document
• Ctrl + W → Close Document

Last updated 07 Nov 2026 by NA

Explanation

• Name: Hazrat Shoaib (A.S)
• Title: Khatib-ul-Anbiya (Speaker of the Prophets) due to his powerful speech and preaching style.
• Nation: People of Madyan and Aykah
• Main message: Truthfulness, fair business, worship of Allah
• Relationship: Father-in-law of Hazrat Musa (A.S)

Explanation

• The SI unit of energy is the Joule (J).
• It is the unit of energy, work, and heat.

Additional information:

• 1 Joule (J) = 1 Newton × 1 meter
• Calorie – 1 cal = 4.184 J
• Kilowatt-hour (kWh) – 1 kWh = 3.6 × 10⁶ J
• Electronvolt (eV) – 1 eV ≈ 1.602 × 10⁻¹⁹ J
• Erg (CGS unit) – 1 erg = 10⁻⁷ J

Last verified on 17-01-2026

Explanation

1 byte equals 8 bits.

Additional Information

Last updated by NA on 05-11-2026

Explanation

The prime numbers less than 25 are: 2, 3, 5, 7, 11, 13, 17, 19, and 23.

Let's add them up:

2 + 3 = 5

5 + 5 = 10

10 + 7 = 17

17 + 11 = 28

28 + 13 = 41

41 + 17 = 58

58 + 19 = 77

77 + 23 = 100

So, the sum of prime numbers less than 25 is: 100

Last updated by NA on 04-11-2026

Explanation

• Blue light has the shortest wavelength.
• In the visible spectrum, wavelength decreases from red to violet.

Additional information:

• Red light rays have the lowest frequency and highest wavelength value.

Last verified on 10-06-2026

Explanation

- Date: 8 March every year

- Purpose: To celebrate women’s achievements and promote gender equality.

- First observance: 1911

- Observed worldwide: Every year on 8 March

- 2026 Theme: Rights. Justice. Action. For ALL Women and Girls.

Last updated: 27 OCT 2026 

Explanation

• Ahsan said that he had been digging the garden when the doctor arrived.
• In indirect speech, past continuous (was digging) changes to past perfect continuous (had been digging).
• The reporting verb “said” keeps the sentence in past tense sequence.

Last verified on 23-10-2026

Explanation

• Edition: 23rd
• Venue: Jinnah Convention Centre, Islamabad
• Starting date: 15 Oct 2024
• Ending date: 16 Oct 2024
• Chaired by: Prime Minister Shehbaz Sharif

Additional information:

• 2025: Russia — Moscow; 24th meeting.
• 2026: Tajikistan — Dushanbe; the SCO’s official report calls it the 24th meeting, although the 2025 meeting was also called the 24th.
• 2027: Uzbekistan — announced as the next host at the 2026 meeting

Last verified on 23-10-2026