4541: Assertion (A) :
A tennis ball will bounce higher in Calcutta than it would in Shimla.
Reason (R) :
The downward pull due to gravity is less and air is more rarefied in Shimla than in Calcutta.
(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true but R is not a correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
4542: What was the main reason for which Niger was in the news in recent times?
(A) Famine and starvation
(B) Many deaths due to AIDS
(C) Fierce civil war
(D) Intense fighting with Algeria
4543: There are 20 students with an average height of 105 cms in a class. Then 10 students with an average height of 120 cms join the class. What will be the average height of the class now?
(a) 100 cms
(b) 110 cms
(c) 120 cms
(d) 130 cms
4544: Which of the following is/are famous for Sun temples?
1. Arasavalli
2. Amarakantak
3. Omkareshwar
Select the correct answer using the code given below:
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
4545: With reference to the Indian Regional Navigation Satellite System (IRNSS), consider the following statements :
1. IRNSS has three satellites in geostationary and four satellites in geosynchronous orbits.
2. IRNSS covers entire India and about 5500 sq. km beyond its borders.
3. India will have its own satellite navigation system with full global coverage by the middle of 2019.
Which of the statements given above is/are correct ?
(a) 1 only
(b) 1 and 2 only
(c) 2 and 3 only
(d) None