PH | MCQs

Explanation

Explanation

• Plato wrote "The Republic" around 380 BCE, a philosophical dialogue on justice, morality, and governance.
• The book is one of Plato's most influential works, shaping Western philosophy and political thought.

Explanation

Karl Marx was a German philosopher during the 19th century.

Born on 5 May 1818, Trier, Prussia, German Confederation

Died in 1883  (aged 64) in London, England

Burial place: The Tomb of Karl Marx, Highgate Cemetery

Explanation

• When blue litmus paper is dipped in an acid, it turns red.
• This is because the acid changes the color of the litmus paper from blue to red.

Note: When red litmus paper is dipped in a base, it turns blue.

Explanation

The distance traveled by a body in unit time is called the speed of the body.

S.I. unit of speed is meter per second (ms−1).

ND11623

Explanation

All electromagnetic waves (like light, X-rays, and radio waves) travel through a vacuum at the same constant speed.

It is approximately 3 × 10⁸ meters per second.

Explanation

Evaporation is the process where liquid turns into gas at temperatures below its boiling point.

It occurs at the surface of the liquid.

It is influenced by factors like temperature and surface area.

Explanation

Gold is the most malleable metal, which means it can be beaten into thin sheets or shapes without breaking.

Gold is a soft, ductile metal with a high degree of plasticity, making it easy to work with.

It can be hammered, rolled, or bent into various forms without cracking or shattering.

Explanation

Adobe Photoshop is the industry standard for photo editing and manipulation.

It offers a wide range of features and tools for:

• Editing and enhancing images
• Retouching and removing blemishes
• Manipulating and transforming images
• Adding text and graphics
• Creating composites and collages

Explanation

The correct preposition here is "at".

Because it indicates the location (school) where the social service week is taking place.