Explanation

• The 1973 Constitution of Pakistan was Passed on April 10, 1973
• Approved on April 12
• Enforced on August 14, 1973
• Drafted by Zulfikar Ali Bhutto's government,
• This Constitution is called the Constitution of the Islamic Republic of Pakistan 1973

Explanation

Magnetic lines of force always form closed loops from the north pole to the south pole outside the magnet and continue inside the magnet.

They never start or end abruptly like electric field lines.

Explanation

• Concave lenses are also known as diverging lenses. 
• Shape: Thinner in the middle and thicker at the edges.
• Image: They produce smaller, upright, virtual images.
• Use: Often used in eyeglasses to correct myopia (nearsightedness). 

Last updated on 09-03-2026

Explanation

• Pakistan is different one.
• While Islamabad, Karachi, and Lahore are specific major cities in Pakistan,
• Pakistan is the country itself.

Last updated 05-03-2026

Explanation

Power is the work done per unit time, measured in watts (W).

It represents the rate at which energy is transferred or work is done.

Additional Information:

• Efficiency is the ratio of output to input energy.
• Energy is the ability to do work.
• Force is a push or pull that can cause an object to change its motion.

Explanation

• Common salt is chemically known as sodium chloride (NaCl),
• It is an ionic compound composed of sodium and chloride ions
• Representing a 1:1 ratio of sodium and chloride ions
• Formula: NaCl
• Melting point: 801 °C
• Density: 2.16 g/cm³
• Boiling point: 1,465 °C

Question updated on 11-02-2026

Explanation

• Murree city is located in the Punjab province of Pakistan.
• It is a mountain resort town
• Located in the Galyat region of the Pir Panjal Range.
• District Rawalpindi Tehsil Muree
• It has an average altitude of 2,291 metres
• it was first identified as a potential hill station by Major James Abbott in 1847

Last updated on 06-March-2026

Explanation

• Definition: The kinetic energy of an object is the form of energy that it possesses due to its motion
• The formula of kinetic energy is: K.E = 1/2 mv²(where  m = mass of the object  , v = velocity of the object)

• Common symbols: KE, Ek, K or T
• SI unit: joule (J)
• The energy transferred is known as kinetic energy
• Depends on the mass and speed achieved.

Last updated on 09-03-2026

Explanation

• Torque is also called the moment of a force, or simply the moment.
• Measure of the rotational force applied to an object
• Unit of torque: newton metre (N m)
• It is a vector quantity.
• Common symbols: τ, M
• SI unit: N⋅m
• In SI base units kg⋅m2⋅s−2
• Dimension: M L^2 T^−2

Explanation

A is B's son (A is 1st gen down)

B is D's daughter (D is grandparent to A)

F is D's son (F is B's brother, thus Uncle to A) 

Therefore, A is F's nephew.

Question updated 03-March-2026