Light Emitting Diodes (LED) is used in fancy electronic devices such as toys emit


Options: X-rays,    ultraviolet light,    visible light,    radio waves

Ans:C,C


Description:

Asked in: KCC-2018   |   JOA 556-2018  |  HRTC JTO-2017

Hits Today: 16606 | Level: Moderate


******************************************************

Want to see where do you stand among other aspirants in "General Knowledge" category?

Click Here to take quick 10 mins MCQ test to find out.




Got some suggestion about this question or to make this site better? Please leave your comments below.




More physics Related questions:


The headquarters of the Commonwealth of Independent States (CIS), formed out of erstwhile USSR, is at
Options: Minsk in Byelorussia,    Moscow in Russia,    Kiev in Ukraine,    Kistiner in Moldavia

Ans:A,A


Famous sculptures depicting art of love built some time in 950 AD – 1050 AD are
Options: Khajuraho temples,    Jama Masjid,    Sun temple,    Mahabalipuram temples

Ans:A,A


On which of the following sites can you set up your email account:
Options: Www.linux.org,    Www.gre.org,    Www.syvum.com,    Www.hotmail.com

Ans:D,D


Which company carries the construction of submarines, missile-boats and destroyers and so on for the India navy and offshore supply vessels and well-head platforms and so on?
Options: Mazgaon Dock Limited (MDL),    Garden Reach Shipbuilders and Engineering Limited (GRSE),    Goa Shipyard Limited (GSL),    None of the above

Ans:A,A


The National Song of India was composed by
Options: Rabindranath Tagore,    Bankim Chandra Chatterji,    Iqbal,    Jai Shankar Prasad

Ans:B,B


The world famous Ajanta caves are situated in
Options: Orissa,    Andhra Pradesh,    Kerala,    Maharashtra

Ans:D,D


The phrase 'procedure established by the law' means
Options: the judges in India cannot question the fairness or validity of a law, provided it is within the limits of the constitution,    judges in India can question the fairness or validity of an undue law even if it is within the limits of the constitution,    judges in India can declare a law invalid simply because in their opinion the law is not due or is unjust,    None of the above

Ans:A,A


When a given amount of air is cooled
Options: the amount of moisture it can hold decreases,    its absolute humidity decreases,    its relative humidity remains constant,    its absolute humidity increases

Ans:A,A


The river Sutlej, on which the Bhakra Dam has been built, originates from
Options: a spring in Vering,    near Bara Lacha Pass in Lahul,    Rakas lake in Tibet,    Mansarovar lake

Ans:C,C


The IBM PC-XT was the first to include a hard drive. What was the capacity of this disk?
Options: 20 MB,    1.44 MB,    10 MB,    750 KB

Ans:C,C


P.T. Usha, who came close to bagging a bronze finished fourth in ____ in 1984 Olympics.
Options: 400 m final,    800 m final,    400 m hurdle,    the marathon

Ans:C,C


Computers calculate numbers in what mode?
Options: Decimal,    Octal,    Binary,    None of the above

Ans:C,C


Pakistan left the Commonwealth in 1972, but rejoined as 49th member of the Commonwealth in
Options: 1984,    1991,    1997,    2000

Ans:B,B


The last major glacial period began about 2,000,000 years before present and is commonly known as
Options: Pleistocene or ice age,    Paleocene or ice age,    Pliocene or ice age,    Holocene or ice age

Ans:A,A


Optical fibre works on the
Options: principle of refraction,    total internal reflection,    scattering,    interference

Ans:B,B


In 1983, which person was the first to offer a definition of the term 'computer virus'?
Options: McAfee,    Smith,    Cohen,    Norton

Ans:C,C


In which year did Milkha Singh win the first National title in the 400 m race?
Options: 1955,    1956,    1957,    1970

Ans:C,C


'The Vedas contain all the truth was interpreted by
Options: Swami Vivekananda,    Swami Dayananda,    Raja Rammohan Roy,    None of the above

Ans:B,B


Uttaranchal has international boundary with ____ in north, north-east and eastern side.
Options: China,    Nepal,    both (a) and (b),    None of the above

Ans:C,C


who was founder of das dynasty?
Options:

Ans:kutubdin,


When cream is separated from milk
Options: the density of milk increases,    the density of milk decreases,    the density of milk remains unchanged,    it becomes more viscous

Ans:A,A


Find the maximum velocity for the overturn of a car moving on a circular track of radius 100 m. The co-efficient of friction between the road and tyre is 0.2
Options: 0.14 m/s,    140 m/s,    1.4 km/s,    14 m/s

Ans:D,D


Vinod Kambli on his Test debut made 28 runs having a strike rate of :
Options: 63.58,    46.66,    12.55,    91.07

Ans:A,A


What Karl Benz invented?
Options: Gasoline powered automobile,    Streetcar,    Glider,    Steam turbine

Ans:A,A


What are the 2 terminals of a diode called?
Options: Pentode and Triode,    Gate and Drain,    Drain and Source,    Anode and Cathode

Ans:D,D


Who wrote the book 'The Prince'?
Options: Bernard Shaw,    Niccolo Machiaveli,    V.S. Sharma,    Emile Zola

Ans:B,B


When does the Indonesian settlement in the Malay Peninsula took place?
Options: 2400 BC,    2300 BC,    2200 BC,    2100 BC

Ans:C,C


The time at a place is determined by
Options: the parallels of longitude,    the parallels of latitude,    distance from equator,    distance from prime meridian

Ans:A,A


The following are the half lives of four active isotopes. Which one of the following is the most dangerous to handle?
Options: 3 billion years,    100 years,    0.01 minute,    13 days

Ans:C,C


The progressive wave theory regarding of tides was put forth by
Options: R.A. Harris,    Issac Newton,    William Whewell,    G.B. Airy

Ans:C,C


The isomerism which exists between CH3CHCI2 and CH2CI. CH2CI is
Options: chain isomerism,    functional group isomerism,    positional isomerism,    metamerism

Ans:C,C


what is trik to remember the national park and animal husbandary
Options:

Ans:see in details,


Which of the following is the most appropriate cause of exports surplus?
Options: Country's exports promotion value,    Country's stringent import policy,    Developments in national and international markets,    None of the above

Ans:C,C


Which of these is a search engine?
Options: FTP,    Google,    Archie,    ARPANET

Ans:B,B


Who is the author of the book 'Forbidden Verses'?
Options: Salman RushDie,    Abu Nuwas,    Ms. Taslima Nasrin,    D.H. Lawrence

Ans:B,B


Lata Mangeshkar holds the world record for maximum number of ____
Options: song recordings,    singing songs,    songs composing,    None of the above

Ans:A,A


The main vegetation of the steppe type climatic regions is
Options: evergreen forests,    evergreen deciduous forests,    large grasslands,    coniferous forests

Ans:C,C


The process that directs precipitation down plant branches and stems is called
Options: stem flow,    through flow,    interception,    canopy drip

Ans:A,A


When did the USSR formally disintegrates into 15 republics?
Options: 1991,    1992,    1993,    1994

Ans:A,A


The most important force that provide resistance to particles towards entertainment is
Options: frictional resistance,    particle cohesive bonds,    particle adhesive bonds,    momentum

Ans:A,A


Paleontology is a branch of science that deals with the
Options: behavior of animals,    origin and growth of plants,    the forms of life as revealed by fossils of animals or plants,    formation of new stars

Ans:,


The tunnel that connects France and Italy is
Options: St. Gothard road Tunnel,    Mont Blanc Tunnel,    Mersey (Queens way) Tunnel,    Orange Fish rivers Tunnel

Ans:B,B


Velocity of wind is measured by
Options: speedometer,    tachometer,    anemometer,    audiometer

Ans:C,C


Wood is the main raw material for the manufacture of
Options: paint,    paper,    ink,    gun powder

Ans:B,B


The Territorial Army was established in
Options: 1962,    1948,    1920,    1953

Ans:B,B


Within the transporting medium, transport can occur by
Options: suspension,    solution and traction,    solution,    All of the above

Ans:D,D


What is the population density of Kerala?
Options: 819/sq. km,    602/sq. km,    415/sq. km,    500/sq. km

Ans:A,A


Pick out the scalar quantity
Options: force,    pressure,    velocity,    acceleration

Ans:B,B


In UNO, the new members are admitted to the General Assembly on the recommendation of ____ and ____ the members of the General Assembly should vote in favour.
Options: Security Council; two-thirds,    Security Council; one-third,    International Court of Justice; two-thirds,    International Court of Justice; one-third

Ans:A,A


The year 788 AD was a good one for Hinduism. Why?
Options: Shankracharya was born that year.,    Harsha Vardhana, the last Buddhist king, died.,    Samudragupta converted to Hinduism.,    All Muslim invaders were defeated.

Ans:A,A

www.000webhost.com