Once the active medium is excited, the first photons of light are produced by which physical process?


Options: Blackbody radiation,    Spontaneous emission,    Synchrotron radiation,    Planck’s oscillation

Ans:B,B


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More technology Related questions:


Manav Seva Award has been instituted in the memory of
Options: Rajiv Gandhi,    Dr. Rajendra Prasad,    Indira Gandhi,    Acharya

Ans:A,A


How many gold medals did P.T.Usha win in the 1986 Seoul Asian Games?
Options: 1,    2,    3,    4

Ans:D,D


Which is the associated sport of Bombay Gold Cup?
Options: Basketball,    Weightlifting,    Hockey,    Football

Ans:C,C


Which organ of the United Nations has ceased to be operational?
Options: Economic and Social Council,    International Court of Justice,    Trusteeship Council,    Secretariat

Ans:C,C


In which year did Ajay Jadeja make his ODI debut?
Options: 1996,    1985,    1992,    1991

Ans:C,C


Which is the state with largest urban population?
Options: West Bengal,    Maharashtra,    Kerala,    Goa

Ans:B,B


The first recipient of Rajiv Gandhi's 'Khel Ratna' award is
Options: Vishwanathan Anand,    Leander Peas,    Kapil Dev,    Limba Ram

Ans:A,A


The United Nations is considered as a universal organisation. Which organ of rhe united nations fully represents the fact?
Options: The Economic and Social Council,    The Security Council,    The Secretariat,    The General Assembly

Ans:D,D


The gas used for artificial ripening of green fruit is
Options: ethylene,    ethane,    carbon dioxide,    acetylene

Ans:A,A


The higher the wind speed and the longer the fetch or distance of open water across which the wind blows and waves travel, the ____ waves and the ____ energy they process.
Options: larger, more,    larger, less,    smaller, more,    smaller, less

Ans:A,A


Battle of chausa was fought in
Options: 1527AD, 1539 AD,1757 AD,1764AD

Ans:B,1539 AD


The organic reaction represented by equation CH3 - CH = O + H2NOH gives CH3 - CH - NH + H2O is an example of
Options: an addition reaction,    a condensation reaction,    an oxidation reaction,    an elimination reaction

Ans:B,B


'CD' computer abbreviation usually means ?
Options: Command Description,    Change Data,    Copy Density,    Compact Disc

Ans:D,D


The power to decide an election petition is vested in the
Options: Parliament,    Supreme Court,    High courts,    Election Commission

Ans:C,C


The human body is made up of several chemical elements; the element present in the highest proportion (65%) in the body is
Options: carbon,    hydrogen,    oxygen,    nitrogen

Ans:C,C


The 'satellite freight city' is being developed near which of the following cities?
Options: New Delhi,    Orissa,    Gurgaon,    Kolkata

Ans:C,C


The south-west monsoon contributes ____ of the total rain in India.
Options: 86%,    50%,    22%,    100%

Ans:A,A


Germany signed the Armistice Treaty on ____ and World War I ended
Options: January 19, 1918,    May 30, 1918,    November 11, 1918,    February 15, 1918

Ans:C,C


Lux is the SI unit of
Options: intensity of illumination,    luminous efficiency,    luminous flux,    luminous intensity

Ans:A,A


Which launch vehicle is capable of placing around 1540 kg of INSAT class of satellites in geosynch-ronous transfer orbit of earth?
Options: SLV-S,    PSLV,    ASLV,    GSLV

Ans:D,D


Satpura National Park
Options: Karnataka,Kerala,Madhya Pradesh,MadhyaPradesh

Ans:Madhya Pradesh,


who was founder of Turkish dynasty in India?
Options: Qutub-ud-din Aibak,iltutmish,Mohammad Ghori,Mohammad gajnabi

Ans:A,Qutub-ud-din Aibak


kilohertz is a unit which measures
Options: power used by a current of one ampere,    electromagnetic radio wave frequencies,    voltage,    electric resistance

Ans:B,B


Brass gets discoloured in air because of the presence of which of the following gases in air?
Options: Oxygen,    Hydrogen sulphide,    Carbon dioxide,    Nitrogen

Ans:B,B


Where are the contents of your computer's hard drive indexed?
Options: Yahoo!,    Google,    MSN,    None of the above

Ans:D,D


In Air Force, Air Commodore has one rank higher than
Options: Squadron Leader,    Air Vice-Marshal,    Group Captain,    Air Marshal

Ans:C,C


Of the four locations mentioned below the highest inside temperature will be attained in the pressure cooker operated with the pressure valve open
Options: at sea level,    at the top of Mt. Everest,    at a place in a valley below sea level,    in an aeroplane flying at a height of 10,000 m with inside pressure maintained at the sea level

Ans:C,C


The relative abundance of dissolved salts in seawater in descending order is as follows
Options: chlorine, sodium, sulphate, magnesium, calcium, potassium,    sodium, chlorine, magnesium, potassium, sulphate, calcium,    chlorine, magnesium, calcium, sodium, potassium, sulphate,    chlorine, sodium, magnesium, calcium, potassium, sulphate

Ans:A,A


What is the middle name of the world class batsman Sachin Tendulkar?
Options: Rohan,    Ramesh,    Rahul,    Ravi

Ans:B,B


The magnetosphere becomes unstable during the magnetic storms during a period of
Options: initial phase,    storm sudden commencement phase,    main phase,    None of the above

Ans:C,C


The Salal Project is on the river
Options: Chenab,    Jhelum,    Ravi,    Sutlej

Ans:A,A


Which of the following is commonly called a 'polyamide'?
Options: Terylene,    Nylon,    Rayon,    Orlon

Ans:B,B


Major R.S. Brar is associated with
Options: Boxing,    Golf,    Equestrian,    Tennis

Ans:C,C


Liquids transmit pressure equally in all directions. This is known as
Options: Boyle-Pascal's Law,    Pascal's Law,    Archimedes' Principle,    None of the above

Ans:B,B


The leading state in producing paper is
Options: Bihar,    West Bengal,    Kerala,    Orissa

Ans:B,B


The least explosive type of volcano is called
Options: Basalt plateau,    Cinder cone,    Shield volcanoes,    Composite volcanoes

Ans:A,A


The important mountains of Europe include
Options: Andes, Alps, Pyrenees,    Alps, Carpathians, Pyrenees, Apennines,    Alps, Himalayas, Rock mountains,    None of the above

Ans:B,B


Which of the following agencies related to the United Nation was in existence before the Second World War?
Options: Food and Agricultural Organisation,    International Labour Organisation,    World Health Organisation,    International Monetary Fund

Ans:B,B


The famous Rock Garden is located in which city?
Options: Jaipur,    Lucknow,    Simla,    Chandigarh

Ans:D,D


The trophies and cups awarded for cricket are
Options: McDowell's Challenge cup and World cup,    Federation cup,    Moin-ud-Dowla cup and B. C. Gupta cup,    None of the above

Ans:A,A


Who won 2017 nobble for Literature
Options: A. Svetlana Alexievich B. Mo Yan C. Patrick Modiano D. Kazuo Ishiguro

Ans:D,Kazuo Ishiguro


Gypsum is added to cement clinker to
Options: increase the tensile strength of cement,    decrease the rate of setting of cement,    facilitate the formation of colloidal gel,    bind the particles of calcium silicate

Ans:B,B


Which is the biggest literary award of Britain?
Options: David Cohen Award,    Kalinya Award,    Owen Global Prize,    Golden Bear Award

Ans:A,A


'.JPG' extension refers usually to what kind of file?
Options: System file,    Animation/movie file,    MS Encarta document,    Image file

Ans:D,D


The ionic radii of N3-, O2-, F- and Na+ follows the order
Options: N3- > O2- > F- > Na+,    N3- > Na+ > O2- > F-,    Na+ > O2- > N3- > F-,    O2- > F- > Na+ > N3-

Ans:A,A


Former Australian captain Mark Taylor has had several nicknames over his playing career. Which of the following was NOT one of them?
Options: Tubby,    Stodge,    Helium Bat,    Stumpy

Ans:D,D


The India's highest annual rainfall is reported at
Options: Namchi, Sikkim,    Churu, Rajasthan,    Mawsynram, Meghalaya,    Chamba, Himachal Pradesh

Ans:C,C


One fathom is equal to
Options: 6 feet,    6 meters,    60 feet,    100 cm

Ans:A,A


The imaginary axis at which the earth rotates remains inclined at an angle of ____ to the plane of earth's orbit.
Options: 44 1/2 °,    55 1/2 °,    66 1/2 °,    0 °

Ans:C,C


The largest gold producing country in the world(in 2006) is
Options: China,    Canada,    South Africa,    USA

Ans:C,C

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