SSC CGL GK Questions 2026

The astrophysicist, known for the Saha ionisation equation that explains the spectra of stars, headed the committee set up under the Council of Scientific and Industrial Research in 1952; it reported in 1955 and the calendar it recommended came into use on 22 March 1957.

The Gupta era, dated to 319 or 320 CE, is taken to begin with the accession of Chandragupta I, the first great ruler of the dynasty, and most Gupta inscriptions are dated in it.

Its months follow the phases of the moon and no month is ever added to bring the year back into line with the seasons, so twelve lunar months give about 354 days and the Hijri year slips about eleven days earlier against the Gregorian year; that is why Ramzan can…

That journey of 622 CE is called the Hijrat, and the era takes its name from it; the first month of the Hijri year is Muharram.

Vikram Samvat began in 57 BCE, so the Vikrami year is obtained by adding 57 to the Christian year; this is the era printed on wedding invitations and traditional almanacs in northern India and is the official calendar of Nepal.

The Saka reckoning is most often linked with the Kushana ruler Kanishka, and it is the era on which the Indian National Calendar is built, so the Saka year is about 78 less than the Christian year.

The national calendar begins on 1 Chaitra, which corresponds to 22 March in an ordinary year and to 21 March in a leap year, so that the year opens near the spring equinox.

That day was 1 Chaitra 1879 of the Saka era, and the calendar came into use on the recommendation of the Calendar Reform Committee, which had reported in 1955.

The national calendar counts its years in the Saka reckoning, which began in 78 CE, so a Saka year is found roughly by subtracting 78 from the Christian year; it is printed in the Gazette of India and read out in the news bulletins of All India Radio.

When an incognito window is closed, the browser throws away the list of pages visited in it, the cookies the sites placed and whatever was typed into forms, so that the next person at the same computer finds no trace.

Mosaic was written at the National Center for Supercomputing Applications in the United States by a team that included Marc Andreessen, and it was the first browser to show pictures inside the page alongside the text instead of in a separate window, which is why it is credited with carrying…

The method counts the links pointing at a page and weighs each link by the importance of the page it comes from, so that a page linked by many respected pages rises in the results.

A crawler, also called a spider or a bot, starts from a list of addresses, fetches each page, follows the links it finds and hands the pages over to be indexed; without it a search engine would have nothing to search.

The top-level domain is the last part of a domain name, and.org was set aside for organisations, particularly non-commercial and non-profit bodies, when the first domains were created.

A cookie holds a few lines of text, such as a session number or a chosen language, and the browser sends it back to the same site on the next visit, which is how a shopping cart or a logged-in session survives from one page to the next.

HTTPS is the HyperText Transfer Protocol wrapped in SSL or TLS encryption, so that what passes between the browser and the server cannot be read on the way; the padlock shown in the address bar means the page came over HTTPS.

Apple released Safari in 2003 and ships it with its computers, tablets and phones; it runs on Apple's own WebKit engine.

The two were research students at Stanford University in the United States, and the ranking method they built, PageRank, is named after Larry Page rather than after web pages, a point papers like to test.

The browser engine, also called the layout or rendering engine, is the part that turns the HTML received from a server into the page you see, and Chrome has used Blink since 2013; Opera and Microsoft Edge use the same engine today, which is why pages look alike in all…

A URL is the complete address of a resource on the Web, and it has three visible parts: the protocol, such as https, the domain name, such as www.example.in, and the path to the particular page inside that site.