Lasers are widely used in various walks of life. These are
sources of

(1) Sound waves of very high frequency

(2) Sound waves of very high intensity

(3) Light waves which are coherent

(4) High speed electrons



Lasers are widely used in various walks of life. These are sources of (1) Sound waves of very hi..

Answer / guest

( 3 ) Light waves which are coherent

Is This Answer Correct ?    3 Yes 0 No

Post New Answer

More General Knowledge_Current Affairs Interview Questions

Which is the only book written by Margaret Mitchell reputed to be one of the largest selling best sellers of all time? (a) Gone with the Wind (b) The Three Musketeers (c) Born Free (d) Ulysses

1 Answers  


The President should: (a) be a member of either House of parliament (b) not be a member of either House of parliament (c) be elected to the parliament within six months of his election (d) The Constitution is silent on the issue of his being member of any House of the Parliament

1 Answers  


what are the roles played by non banking financial companies in banking sector?

0 Answers  


Which of the following British statesman/politician won a Nobel Prize in literature ? (a) C Atlee (b) W Churchill (c) Robert Clive (d) Margaret Thatcher

1 Answers  


. Are the directive principles enforceable in the courts? (a) No (b) Yes (c) Some of them

1 Answers  






. The letters L,M,N,O,P,Q,R,S and T in their order are substituted by nine integers 1 to 9 but not in that order. 4 is assigned to P. The difference between P and T is 5. The difference between N and T is 3. What is the integer assigned to N? (a) 7 (b) 5 (c) 4 (d) 6

1 Answers  


In 1918, Gandhiji intervened in a dispute between: (a) peasants and planters (b) workers and mill owners (c) moderates and extremists (d) rightists and socialists

2 Answers  


. What does ‘Super 301’ agreement of U.S.A deals with : (a) The trade relations between the interested countries (b) Alleviation of poverty from III world (c) Foreign exchange crisis of developing countries (d) None of these

1 Answers   Competitive Exams,


Why was prince Edward recently in the news? 1 He was on a visit to India 2 He took over as the Secretary-General of the UNO 3 He will be the new Prime Minister of Britain 4 He was married to Sophie

1 Answers  


The lady Congress leader who went underground during the ?Quit India? movement was 1 Sucheta Kripalani 2 Vijayalaxmi Pandit 3 Aruna Asaf Ali 4 Sarojini Naidu

2 Answers  


Which of the following shows the masses of three elementary particles in decreasing order? 1 Mesons, Baryons, Leptons 2 Leptons, Baryons, Mesons 3 Baryons, Mesons, Leptons 4 Leptons, Mesons, Baryons

1 Answers  


. Soils of western Rajasthan have a high content of (a) Alluminium (b) Calcium (c) Nitrogen (d) Phosphorus

2 Answers   SSC, TCS,


Categories