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Showing posts with label earth. Show all posts
Showing posts with label earth. Show all posts

Saturday 24 October 2015

The waves that helps scientists to understand the internal structure of the Earth are

Question 51 The waves that helps scientists to understand the internal structure of the Earth are

A) primary waves
B) secondary waves
C) surface waves
D) longitudinal waves

Answer: surface waves

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Monday 10 August 2015

The earth completes one rotation on its axis in

Question 67 The earth completes one rotation on its axis in: 

A) 23 hrs. 30 min.
B) 23 hrs. 56 min. 4.9 sec
C) 24 hrs
D) 23 hrs 10 min. 2 sec

Answer:  23 hrs. 56 min. 4.9 sec

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Question 68 In which year did Dada Saheb Phalke produce the first Feature film?

A)  1910
B) 1911
C) 1912
D) 1913

Answer: 1913

Explanation : first Feature film was Raja Harishchandra.

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