Explanation

• Neon gas was discovered by William Ramsay and Morris Travers in 1898.
• It was found during the study of liquefied air and noble gases.
• Neon is a noble gas.
• It is chemically inert (does not react easily).
• It is famous for producing bright reddish-orange light in neon signs.
• It is present in very small amounts in Earth’s atmosphere.

Last verified on 21-06-2026

Explanation

• Inventor: Igor Sikorsky
• First successful model: VS-300
• First flight: 1939 (USA)
• Contribution: Practical helicopter design
• Field: Aviation engineering

Last verified on 21-06-2026

Explanation

• Acrid means تیز، کڑوا، یا جلن دار
• Pungent means تند، تیز، یا چبھنے والی

Last verified on 21-06-2026

Explanation

• Theory proposed by: Charles Darwin
• Book published: 1859
• Book name: On the Origin of Species
• Key concept: Natural Selection
• Voyage that inspired him: HMS Beagle expedition (1831–1836)

Last verified on 21-06-2026

Explanation

PM Modi personal attendance: 7th time

India’s participation in G7 (country level): 13th time

Additional information:

G7 Summit 2026:

• Starting date: 14 June 2026
• Closing date: 15 June 2026
• Edition: 52nd 
• Venue: France

Last verified on 21-06-2026

Explanation

Diameter = 8 cm → radius r = 8 ÷ 2 = 4 cm  

Height = half of radius → h = 4 ÷ 2 = 2 cm  

Volume = πr²h = π × 4² × 2 = π × 16 × 2 = 32π cm³

Last verified on 21-06-2026

Explanation

• OneDrive is an online cloud service.
• It is used for storing and sharing files over the internet.
• It is developed by Microsoft.
• It allows users to access data from anywhere.
• Files are saved on remote servers instead of the local device.
• It supports backup, syncing, and file sharing features.

Last verified on 21-06-2026

Explanation

• Compilation Testing is NOT a type of software testing.
• While Unit, Integration, and System testing are standard testing levels.
• Compilation is the process of converting code into machine language, not a testing phase.
• Software testing is done to find errors after or during development stages.

Last verified on 21-06-2026

Explanation

Odd function: F(-x) = -F(x) → F(x) + F(-x) = 0

Even function: F(-x) = F(x) → F(x) + F(-x) = 2F(x)

Here we have F(x) + F(-x) = 6, a constant

That means the function is symmetric about y = 3

So we call it constant symmetric form.

Last verified on 21-06-2026

Explanation

When a value of x is given, we replace x in the polynomial and simplify to get the result.

This is called evaluation of a polynomial.

Last verified on 21-06-2026