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2 questions · 2012 · answers as per the UPSC key

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UPSC 2012 · Q18 · Science & Technology › Physics · Save

A team of scientists at Brookhaven National Laboratory including those from India created the heaviest anti-matter (anti-helium nucleus). What is/are the implication/implications of the creation of anti-matter?

  1. It will make mineral prospecting and oil exploration easier and cheaper.
  2. It will help probe the possibility of the existence of stars and galaxies made of anti-matter.
  3. It will help understand the evolution of the universe.

Select the correct answer using the codes given below :

(a) 1 only
(b) 2 and 3 only
(c) 3 only
(d) 1, 2 and 3
Show answer
Answer: (b) 2 and 3 only
UPSC 2012 · Q93 · Science & Technology › Physics · Save

Consider the following statements : If there were no phenomenon of capillarity

  1. it would be difficult to use a kerosene lamp
  2. one would not be able to use a straw to consume a soft drink
  3. the blotting paper would fail to function
  4. the big trees that we see around would not have grown on the Earth

Which of the statements given above are correct?

(a) 1, 2 and 3 only
(b) 1, 3 and 4 only
(c) 2 and 4 only
(d) 1, 2, 3 and 4
Show answer
Answer: (b) 1, 3 and 4 only