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Q. Which technology is used in compact disks?
(A) Mechanical
(B) Electrical
(C) Laser
(D) Electromagnetic
The answer is: (C) Laser
Past Papers MCQs
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- Which technology is used in compact disks?
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- Generators are devices that convert __________ energy into __________ energy.
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- How many articles were there in 1962 constitution?
- Which of the following is NOT an example of a discrete probability distribution?
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- According to 1973 constitution, who elects Prime Minister?
- The term ‘computer’ is derived from__________?
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- Which kind of system of government was introduced in 1973 constitution?
- Marketers often use the term ________ to cover various groupings of customers.
- What is the synonym of Rebate?
- Choose the correct article: I don’t like _____ dogs.
- Complete the Proverb: Birds of a feather _____ together.
- He was waiting _____ the door.
- Past Papers MCQs PPSC NTS FPSC Test
- How tall is the Great Stupa?
- Who led the first expedition to circumnavigate the globe?
- What event inspired Francis Scott Key to write the “The Star-Spangled Banner”?
- The big dipper is part of which constellation?