[7] Einstein publishes his special theory of relativity.
[9] He is awarded the Nobel Prize in Physics.
[11] Einstein writes a letter to U.S. President, Franklin D. Roosevelt, and warns against Germany’s building of an atomic bomb.
[2] Einstein attends a high school in Munich.
[3] Einstein’s family moves to Milan. [1] Einstein is born in the German city of Ulm.
[5] Einstein joins a university in Zurich, where he meets Mileva.
[12] Einstein dies. [8] He provides a new interpretation of gravity.
[4] Tired of the school’s regimentation, Einstein withdraws from school.
[6] He works in a patent office as a technical expert.
[10] When Hitler comes to power, Einstein leaves Germany for the United States.
Why was Santosh sent to the local school?
When did she leave home for Delhi, and why?
Length (in hours) | Number of lamps |
|---|---|
300 − 400 | 14 |
400 − 500 | 56 |
500 − 600 | 60 |
600 − 700 | 86 |
700 − 800 | 74 |
800 − 900 | 62 |
900 − 1000 | 48 |
(i) Represent the given information with the help of a histogram.
(ii) How many lamps have a lifetime of more than 700 hours?
Why was Santosh sent to the local school?