481: Each of 8 identical balls is to be placed in the squares shown in the figures given in a horizontal direction such that one horizontal row contains 6 balls and the other horizontal row contains 2 balls. In how many maximum different ways can this be done?
(a) 38
(b) 28
(c) 16
(d) 14
482: The efforts to detect the existence of Higgs boson particle have become frequent news in the recent past. What is/are the importance/importances of discovering this particle?
1. It will enable us to understand as to why elementary particles have mass.
2. It will enable us in the near future to develop the technology of transferring matter from one point to another without traversing the physical space between them.
3. It will enable us to create better fuels for nuclear fission.
Select the correct answer using the codes given below.
(a) 1 only
(b) 1 and 3 only
(c) 2 and 3 only
(d) 1, 2 and 3
483: The evidence for the rotation of stars comes mainly from the
(a) Doppler effect
(b) Photoelectric effect
(c) Stark effect
(d) Zeeman effect
484: Which one of the following began with the Dandi March?
(a) Home rule Movement
(b) Civil disobedience Movement
(c) Non-Cooperation Movement
(d) Quit India Movement
485: "A graduate at 18, professor and associated editor of the Sudharak at 20, Secretary of the Sarvajanik Sabha and of the Provincial Conference at 25, Secretary of the National Congress at 29, leading witness before an important Royal Commission at 31, Provincial legislator at 34, Imperial legislator at 36, President of the Indian National Congress at 39......... a patriot whom Mahatma Gandhi himself regarded as his master." This is how a biographer describes
(a) Pandit Madan Mohan Malaviya
(b) Mahadev Govind Ranade
(c) Gopal Krishna Gokhale
(d) Bal Gangadhar Tilak