Explanation

• Picosecond (ps) = 10⁻¹² seconds
• SI prefix “pico” means 10⁻¹².
• 1 picosecond = one trillionth of a second.

Additional information:

• Microsecond (μs) = 10⁻⁶ seconds
• Nanosecond (ns) = 10⁻⁹ seconds
• Millisecond (ms) = 10⁻³ seconds
• Femtosecond (fs) = 10⁻¹⁵ seconds
• Attosecond (as) = 10⁻¹⁸ seconds
• Zeptosecond (zs) = 10⁻²¹ seconds
• Yoctosecond (ys) = 10⁻²⁴ seconds

Last verified on 17-06-2026

Explanation

Last verified on 30-04-2026

Explanation

• Published: 28 August 1928
• Place: Lucknow Conference
• Chairman: Motilal Nehru
• Member: Jawaharlal Nehru
• Main Demand: Dominion status & federal system for India
• Muslim League Response: Muhammad Ali Jinnah rejected it and presented his 14 Points.

Last verified on 10-06-2026

Explanation

• Alexander Fleming discovered Penicillin
• At St. Mary's Hospital in London
• In September 1928.
• First true antibiotic used to treat bacterial infections.
• First patient treated was Albert Alexander, a 43-year-old policeman, on 12 February 1941

Last updated by NA on 23-April-2026

Explanation

• "Has" is correct because "none" is often treated as singular in formal usage.
• It especially when referring to a singular action or condition, like completing work correctly.

Last verified on 20-04-2026

Explanation

K2 World 2nd highest mountain

• K2 Elevation: 8,611 m
• K2 First ascent: July 31, 1954
• K2 Mountain range: Karakoram range
• K2 First ascenders: Achille Compagnoni, Lino Lacedelli
• K2 Easiest route: Abruzzi Spur

Last verified on 06-03-2026

Explanation

• First Viceroy of India: Lord Canning in 1858
• Last Viceroy of India: Lord Mountbatten in 1947
• First Governor of Bengal: Robert Clive
• First Governor-General of Bengal: Warren Hastings (1772-1785)
• First Governor-General of India: William Bentinck in 1833

Explanation

An IP address is a unique address that identifies a device on the Internet or a local network.

IP stands for "Internet Protocol." 

It is the set of rules governing the format of data sent via the Internet or local network.

E-mail Address:

This identifies a user's mailbox for sending and receiving email, not the computer itself. 

Street Address:

This is a physical address and is not used to identify a computer on the internet. 

Login Password:

This is used to authenticate a user and gain access to an account or device, not to identify the device on the network. 

Explanation

• The Rowlatt Satyagraha was a national protest against Rowlatt Act introduced in 1919.
• The Rowlatt Act was passed on 6th February 1919.
• Rowlatt Satyagraha was founded in 1919 by Mahatma Gandhi.
• Gandhiji became a true national leader as a result of the Rowlatt Satyagraha.
• The Rowlatt Act gave the British government the ability to arrest and imprison anyone for no cause.
• The Rowlatt Act was officially known as the "anarchical and revolutionary offenses act."
• Gandhiji referred to the Rowlatt Act as a "black act."
• On April 6, 1919, Mahatma Gandhi resolved to fight the Rowlatt Act and issued a call for satyagraha.
• The British viceroy who approved the Rowlatt Act was Lord Chelmsford.

Explanation

Wind blows from areas of high pressure to areas of low pressure.

This is because air molecules move from areas of higher concentration (high pressure) to areas of lower concentration (low pressure) to equalize the pressure difference.

This movement of air is what we feel as wind.