What was the active medium used in the first working laser ever constructed?


Options: A diamond block,    Helium-neon gas,    A ruby rod,    Carbon dioxide gas

Ans:C,C


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More technology Related questions:


In which year a resolution 'Uniting for Peace' was adopted by UN General Assembly?
Options: 1950,    1960,    1965,    1980

Ans:A,A


A computer virus that actively attacks an anti-virus program or programs in an effort to prevent detection is...
Options: Worm,    Retrovirus,    Trojan,    Ghost virus

Ans:B,B


Govind Pashu Vihar Wildlife Sanctuary
Options: Karnataka,Kerala,Tripura,Uttarakhand

Ans:Uttarakhand,


What George Pullman invented?
Options: Sleeping (railway) car,    Airship,    Box car (railway),    Air brakes

Ans:A,A


Which of the following films has won 9 Oscar Awards in 1987?
Options: The World Safari,    The Last Emperor,    Rain Man,    Amadeus

Ans:B,B


The uppermost epoch of the Neogene period is
Options: the Pliocene epoch,    the Pleistocen epoch,    the Miocene epoch,    the Oligocene epoch

Ans:A,A


The right ascension is the equivalent of longitude on the celestial sphere, and it is given in the units of
Options: degrees,    time-hours, minutes and seconds,    only hours,    only seconds

Ans:B,B


Mina is the tribe of
Options: Tripura,    Sikkim,    Rajasthan,    Nagaland, Assam

Ans:C,C


Vitamin B12 is most useful for combating
Options: anemia,    goitre,    night blindness,    rickets

Ans:A,A


The first person of Indian origin to be appointed as a judge in U.S. is
Options: P.A.Sangma,    Basava Rajeswari,    R.C.Bharadwaj,    Ridhi Desai

Ans:D,D


The serial 'India's Rajiv' was produced and directed by
Options: Simmi Garewal,    Satyajit Ray,    Shyam Benegal,    Mira Nair

Ans:A,A


In which decade was the first solid state integrated circuit demonstrated?
Options: 1950s,    1960s,    1970s,    1980s

Ans:A,A


Which of the following has a least penetrating power?
Options: All have same penetrating power,    Beta Particles,    Alpha particles,    Gamma rays

Ans:C,C


The most extensive, commercially useful source of thorium as monazite sand occurs in India at
Options: Orissa coast,    Travancore coast,    West Bengal coast,    Gujarat coast

Ans:B,B


The mean radius of the earth is approximately
Options: 32,000 km,    6,400 km,    9,600 km,    12,800 km

Ans:B,B


Hundred year war was fought between
Options: France and England,    Greek and Persian forces,    Civil war in England,    None of the above

Ans:A,A


Fa-Hien (China) (405-411 AD): visited india during rule of which emperor
Options:

Ans:Chandragupta II, known as Vikramaditya.,


How many centuries in Tests did Sunil Gavaskar bag when he retired?
Options: 23,    45,    34,    54

Ans:C,C


The celebrated novel 'The Godfather' was authored by
Options: Harold Robbins,    John Milton,    Victor Hugo,    Mario Puzo

Ans:D,D


Guru Gobind Singh was
Options: the 10th Guru of the Sikhs,    founder of Khalsa, the inner council of the Sikhs in 1699,    author of Dasam Granth,    All the above

Ans:D,D


Who is the first Asian Winner of Nobel Prize?
Options: C. V. Raman,    Rajiv Gandhi,    Rabindranath Tagore,    Mother Teresa

Ans:C,C


Plant have ____ while animals lack it.
Options: starch,    cellulose,    protein,    fat

Ans:B,B


The purpose of choke in tube light is ?
Options: To decrease the current,    To increase the current,    To decrease the voltage momentarily,    To increase the voltage momentarily

Ans:D,D


The International Human Rights Convention adopted by the United Nations in 1990 relates to
Options: disabled,    stateless persons,    migrant workers,    children

Ans:D,D


2nd battle of pannipat was fought between
Options:

Ans:akabar and hemu,akabar and hemu


Two of the great Mughals wrote their own memories. There were
Options: Babar and Humayun,    Humayun and Jahangir,    Babar and Jahangir,    Jahangir and Shahjahan

Ans:C,C


The region that has a typical dispersed rural settlement pattern is the
Options: Kerala coastal plain,    western Ganga plain,    eastern Rajasthan,    Telengana plateau

Ans:A,A


Sound produced at a point is heard by a person after 5 second, while the same sound is heard by another person after 6 seconds. If the speed of sound is 300 m/s, what could be the maximum and minimum distances between the two persons?
Options: 1.8 km, 0.15 km,    2.2 km, 0.20 km,    2.8 km, 0.25 km,    3.3 km, 0.30 km

Ans:D,D


Grand Slam in Tennis means a player has to win
Options: Australian open, French open, U.S. open and Wimbledon,    Australian open, U.S. Open and Wimbledon,    Australian open, French open and Wimbledon,    French open, Wimbledon

Ans:A,A


In fireworks, the green flame is produced because of
Options: sodium,    barium,    mercury,    potassium

Ans:B,B


Who was named as the ICC Emerging Player of the Year 2004?
Options: Piyush Chawla,    Gautam Gambhir,    Irfan Pathan,    Suresh Raina

Ans:C,C


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

Ans:D,D


Which Academy promotes and develops literature in all the 22 languages of India?
Options: Sahitya Academy,    Sangeet Natak Academy,    Lalit Kala Academy,    None of the above

Ans:A,A


The periodic rise and fall of the sea level on the earth, gives rise to tides. This is related to
Options: the position of the moon with reference to the earth and the gravitational pull exerted mainly by the moon and partly by the sun,    infrared rays from the sun,    ultraviolet rays from the sun,    None of the above

Ans:A,A


Which is a type of Electrically-Erasable Programmable Read-Only Memory?
Options: Flash,    Flange,    Fury,    FRAM

Ans:A,A


Hardware devices that are not part of the main computer system and are often added later to the system.
Options: Peripheral,    Clip art,    Highlight,    Execute

Ans:A,A


Navegaon National Park
Options: Karnataka,Kerala,Tripura,Maharashtra

Ans:Maharashtra,


Who co-founded Hotmail in 1996 and then sold the company to Microsoft?
Options: Shawn Fanning,    Ada Byron Lovelace,    Sabeer Bhatia,    Ray Tomlinson

Ans:C,C


The major countries of central America are
Options: Belize, Costa Rica, Panama,    China, Taiwan, Japan,    Iran, Iraq, Saudi Arabia, Kuwait,    All of the above

Ans:A,A


The parliament can legislate on a subject in the state list
Options: if the Rajya Sabha passes a resolution by two-third majority declaring the subject in state list of national importance,    if the legislatures of two or more states recommend to the Parliament to legislate on such a subject with regard to those states,    for the implementation of treaties and agreements with foreign powers,    All the above

Ans:D,D


It is easier to roll a barrel full of coal tar than to pull it because
Options: the full weight of the barrel comes into play when it is pulled,    the rolling friction is much less than the sliding friction,    more surface area of the barrel is in contact with the road when it is pulled,    coal tar is a liquid and it flows in the barrel when it is rolled

Ans:B,B


Light travels at the fastest speed in
Options: glass,    water,    hydrogen,    vacuum

Ans:D,D


Sanjay Gandhi National Park
Options: Karnataka,Kerala,Tripura,Maharashtra

Ans:Maharashtra,


On a night when the sky is clear, the temperature may dip considerably; on a cloudy night the temperature will usually dip much less. The reason for this difference is that
Options: the clear sky allows radiant energy to escape readily from the earth,    on a cloudy night the clouds are warm and therefore retard the cooling,    the clear sky allows the cold of outer space to reach the earth,    current of air carry the heat away from the earth on a clear night

Ans:A,A


The book 'To Live or Not Live' was written by
Options: V.S. Naipaul,    Alexandra Dumas,    George Elliot,    Nirad C. Chaudhuri

Ans:D,D


The president can be impeached for
Options: violating the constitution,    disregarding Parliament,    for not taking the prime minister's advice,    All of the above

Ans:A,A


The main crops of kharif are
Options: rice, jowar, bajra,    ragi, maize,    cotton, jute,    All of the above

Ans:D,D


Which of the following drainage systems fall into Bay of Bengal?
Options: Ganga, Brahmaputra and Godavari,    Mahanadi, Krishna and Cauvery,    Luni, Narnada and Tapti,    Both (a) and (b)

Ans:D,D


Ms. Medha Patkar is associated with the
Options: Tehri project,    Enron project,    Sardar Sarovar project,    Dabhol project

Ans:C,C


Out of 900 reported species of living gymnosperms, conifers are represented by about 500 species, About 2,50,000 species of angiosperms (flowering plants) have also been reported in the world. The vast and dominant woodlands in Europe, Asia, North America and mountains such as Himalayas are wooded with
Options: all gymnosperms, except conifers,    only angiosperms,    only conifers,    angiosperms and all gymnosperms except conifers

Ans:C,C

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