Explanation

• The Social Boycott of Banu Hashim started in the 7th year of Prophethood (Nabvi).
• It was imposed by the Quraysh of Makkah against Banu Hashim and early Muslims.
• The boycott continued for 3 years (7th–10th Nabvi).

Last verified on 03-04-2026

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

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

Explanation

• The Indus Waters Treaty was signed on September 19, 1960, in Karachi.
• It was signed between Pakistan (President Ayub Khan) and India (Prime Minister Jawaharlal Nehru).
• It was brokered by the World Bank.

It became effective on April 1, 1960.

• Western Rivers (given to Pakistan): Indus, Jhelum, Chenab
• Eastern Rivers (given to India): Ravi, Beas, Sutlej

Last verified on 30-03-2026

Explanation

Velocity is a vector quantity. 

A vector quantity has both magnitude and direction.

Velocity, which describes the rate of change of position in a specific direction, needs both a magnitude (speed) and a direction to be fully defined. 

Vector Quantities: Velocity, momentum, torque, acceleration.

Scalar Quantities: Work, distance, speed, mass.

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.

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.

Explanation

Change in momentum = 20 − 5 = 15 kg·m/s

Time = 3 s → Force = 15 / 3 = 5 N

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.

Explanation

Force is defined as the rate of change of linear momentum with respect to time.

According to Newton’s second law, force causes a change in an object’s momentum.