Amity University 2006 Diploma Information Technology iit jee with answers - Question Paper

D. The radiation is redshifted, but not in a way that is similar to any known objects.
Answer: B
Description: If the light from the gamma ray bursts has similar redshift to light from other sources far outside the galaxy, then it would be evidence in favor of Jesse's position that the sources of the bursts originate far outside our galaxy.
IIT JEE - Home
Websites of IIT
JEE Syllabus
IIT ques. Papers
Books For IIT
IIT JEE 2005
IIT Courses
Seats Reservation
Eligibility Criteria
Analysis of IIT JEE
IIT Alumni
IIT JEE Tips
IIT Articles
Passage four

The subsequent table represents the concentration of ions and dissolved gases in the sediment at the bottom of an ocean. A depth of 0 centimeters (cm) represents the top of the sediment. The concentrations are expressed in parts per million (ppm). The acidity of a solution is represented on a scale known as pH. A pH of one is very acidic, a pH of seven is neutral, and a pH of 14 is very basic.

Depth
(cm)
Temperature
(oC) pH Concentration in sediment (ppm)
SO42- S2- CO2 Fe3+ Fe2+ O2
0 four 7.0 7.0 0.0 1.0 4.0 0.5 2.0
5 five 6.5 5.0 2.0 1.5 3.0 1.5 1.0
10 seven 6.0 3.5 3.5 2.0 2.0 2.0 0.0
15 nine 5.5 3.3 3.8 3.0 0.8 3.8 0.0
20 10 5.0 3.0 4.0 1.0 0.5 4.0 0.0


Q. 16 According to the info given in the table, the concentration of which of the subsequent ions and dissolved gases is constant for sediment depths of 10 cm or more?


Sulfide (S2-)
Carbon dioxide (CO2)
Ferric iron (Fe3+)
Oxygen (O2)
Q. 17 The graph beneath best represents the relationship ranging from concentration and sediment depth for which of the subsequent ions and dissolved gases?




Ferrous iron (Fe2+)
Oxygen (O2)
Carbon dioxide (CO2)
Sulfate (SO42-)
Q. 18 If the patterns indicated in the table were to continue, 1 would predict the pH of the sediments at a depth of 35 cm to be:


1.5.
3.5.
4.5.
6.0.
Q. 19 A certain kind of bottom-dwelling microorganism thrives under the subsequent environmental conditions: low concentrations of Fe2+, high concentrations of O2, and a neutral pH. Based on the table, at which of the subsequent sediment depths would 1 most likely obtain this microorganism?


0 cm
5 cm
10 cm
15 cm
Q. 20 A researcher wants to determine whether an unidentified sediment sample was drawn from a depth of 15 cm or 20 cm. Based on the info in the table, which of the subsequent would NOT confirm the depth of the sample?

Earning:   Approval pending.