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Question 131

Question MCQ▾

Which of the statement/statements given below is/are correct about Nobel Prize in Chemistry 2023?

(i) Three scientists namely Moungi Bawendi, Louis Brus and Alexei Ekimov were recently awarded Noble Prize in Chemistry for exploring the Nanoworld.

(ii) They developed and discovered quantum dots, particles whose size governs the properties.

(iii) A quantum dot contains just a few thousand atoms that are squished into the space.

(iv) Since 1930s, scientists have known that squeezing atoms into a tiny enough “container” could increase the electrons frequency and change the light type that the material absorbs or emits. (October)

Choices

Choice (4)Response

a.

(iv) only

AND

(i) , (ii) , (iii)

b.

(ii) only

c.

(i) only

d.

All a., b. and c. are correct

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Question 132

Question MCQ▾

Consider the following statements about Sri Lanka՚s Visa-free Travel programme for Indians:

(i) This initiative will facilitate seamless travel to Sri Lanka.

(ii) Previously Indians travelling to Sri Lanka had to carry an Electronic Travel Authorization (ETA) document before travelling to Sri Lanka.

(iii) The ETA document had to be produced at the time of arrival. This document was valid for 30 days costing the travellers INR 2080.

(iv) India has got the 18th rank on Henley Passport Index and has climbed seven places on Henley Passport Index 2023 from 87 last year.

Which of the statement/statements give above is/are incorrect? (October)

Choices

Choice (4)Response

a.

(ii) and (iii) only

b.

(i) and (ii) only

c.

(iv) only

d.

(ii) , (iii) and (iv) only

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