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Science and Technology Quiz 23. 12. 2017

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Question 1

Which law states that mass can neither be created nor destroyed in a chemical reaction?

Question 2

Find out incorrect sentence –

Question 3

Consider the following statements:
1) Solids have negligible compressibility.
2) Liquids flow and change shape, hence, they can be called fluid.
3) Gases have most energetic particles.

Which of the statements given above is/are INCORRECT?

Question 4

Consider the following pairs of Quantity and its Unit –
1) Energy : Pascal
2) Pressure : Calorie
3) Time : Light Year
4) Luminous intensity : Bar
Which of the above pairs are incorrectly matched?

Question 5

Which of the following statements is/are correct?
1) Electroluminescence (EL) is a phenomenon in which a material emits light in response to the passage of an electric current or to a strong electric field.
2) A light-emitting diode (LED) works on Electroluminescence mechanism.
3) A halogen lamp primarily works on the same mechanism of Electroluminescence.
4) TFT technology is very crucial to AMOLED technology.
Select the correct answer using the codes given below-

Question 6

Pseudopodia is related with –
  • 1962 attempts
  • 23 upvotes
  • 60 comments
Dec 23Other State Exams

Posted by:

Priyanka ChaturvediPriyanka ChaturvediMember since Nov 2017
Community Manager UPSC
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