Explanation

In irregular (diffused) reflection, light rays hit a rough surface.

This causes them to reflect in different directions and angles.

Explanation

• The standard form of a quadratic equation is ax^^2+bx+c=0.
• a, b, and c are constants.
• a ≠ 0; otherwise, it would not be quadratic.
• The highest power of x is 2.
• Example: 2x^2 + 3x -5=0.

Last updated 25-07-2026 by NA

Explanation

The Badshahi Mosque, or the 'Emperor's Mosque', is a mosque in Pakistan.

It was built in 1673 by the Mughal Emperor Aurangzeb in Lahore, Pakistan, near the Minar-e-Pakistan.

Explanation

An atomic bomb is based on the nuclear reaction known as nuclear fission,

A heavy atomic nucleus splits into two or more lighter nuclei, releasing a large amount of energy in an uncontrolled chain reaction.

The bombs dropped on Hiroshima and Nagasaki were examples of nuclear fission bombs, utilizing uranium-235 or plutonium-239 as the fissionable material. 

Explanation

Neutral equilibrium is a state where the body is balanced, but the slightest disturbance will not cause it to return to its original position or topple over.

In this state, the center of gravity (CG) remains at the same height, regardless of the slight tilt or displacement.

Key Points: 

• A body is in unstable equilibrium after slight tilt if its center of gravity remains above the point of contact.
  
• A body is in stable equilibrium after slight tilt if its center of gravity remains above the point of contact.
  

Explanation

The homogeneous mixture of two or more than two components is called Solution.

Filtration separates solids from liquids using a filter.

Sublimation & Distillation separate components based on phase changes (solid to gas & liquid boiling points).

Explanation

• Filtration is the process of separating an insoluble solid from a liquid by passing the mixture through a filter paper or a porous material.
• The solid particles are retained by the filter.
• While the liquid passes through, resulting in a clear separation of the two.

Explanation

​​The word geology means 'Study of the Earth'.

Also known as geoscience or earth science,

Geology is the primary Earth science and looks at how the earth formed its structure and composition,

and the types of processes acting on it.

Explanation

The power of the lens is the reciprocal of focal length.

The SI unit is dioptre.

Dioptre (D)

Power of lens = 1/ focal length in meter.

Explanation

The formula for sulfuric acid is H2SO4.

It indicating that one molecule contains two hydrogen atoms, one sulfur atom, and four oxygen atoms.