1) How was C.V. Raman’s discovery hailed as? 2) What was a red-letter day?

Question

Read the following passage.

The world hailed the discovery as the ‘Raman Effect’. For scientific research in this country, it was a red-letter day. His discovery caught the attention of the world. With equipment worth hardly Rs. 200/- and limited facilities, Raman was able to make a discovery which won him the Nobel Prize in physics in 1930. 

Now answer the following questions : 

1) How was C.V. Raman’s discovery hailed as? 

2) What was a red-letter day? 

3) What do you mean by the phrase “red-letter day “? 

4) What was the day ‘a red-letter day’ for? 

5) What was so special about Raman’s discovery? 

6) What did his discovery fetch him? 

7) When did C.V. Raman win the Nobel Prize?

8) In which subject did C.V. Raman win Nobel Prize? 

9) “For his scientific research in his country” – Which country did he belong to? 

10) What do you mean by ‘Raman Effect’?

Answer 1

1) C.V. Raman’s discovery was hailed as ‘Raman Effect’. 

2) March, 16, 1928 was a red-letter day. 

3) The phrase ‘a red-letter day’ means an important day. 

4) The day was the red-letter day for scientific research in his country. 

5) Raman was able to make a discovery with equipment worth hardly Rs. 200 and limited facilities. 

6) His discovery fetched him the Nobel Prize. 

7) C.V. Raman won the Nobel Prize in 1930.

8) C.V. Raman won the Nobel Prize in Physics. 

9) C.V. Raman belonged to India. 

10) Raman Effect means that the light change its nature when passed through a transparent medium.