A. Sr90, I131
B. Cr51, Cu64
C. Zr95, Mn54
D. All of these
Related Mcqs:
- Keeping the frequency of nuclear tests, it is estimated that on an average the five nuclear powers conducted nuclear tests at the rate of:
A. One test every 20th day
B. One test every 13th day
C. One test every 11th day
D. One test every 9th day - Which of the following isotopes is most dangerous to Homo sapiens?
A. P32
B. Sr90
C. Cs137
D. I131 - The radioactive fall out contaminates:
A. Soil only
B. Soil and water both
C. Air and water both
D. Air, soil and water - Through food chain radioactive Sr (Sr90) is deposited in which part of human body?
A. Kidneys
B. Thyroid
C. Bones
D. Muscles - The effect of today’s radioactive fallout will probably be more harmful to children of future generations than to children now living because:
A. Contamination of milk supply is not cumulative
B. Infants are more susceptible to radiation
C. Susceptibility to radiation increases with age
D. Mutated genes are frequently recessive - Photochemical smog formed in congested metropolitan cities mainly consists of:
A. Ozone, peroxyacetyl nitrate and No2
B. Smoke, peroxyacetyl nitrate and SO2
C. Hydrocarbons, SO2 and CO2
D. Hydrocarbons, ozone and SO2 - The nuclear installation should be at a place where there is no inhabitation atleast within:
A. 2 km
B. 4 km
C. 8 km
D. 10 km - The first nuclear reactor disaster occurred at:
A. Chernobyl
B. TMI-2
C. Narora
D. Trombay - The first nuclear explosion over the city of Hiroshima took place in 1945 on:
A. August, 8th
B. August, 9th
C. August, 6th
D. August, 4th - The first nuclear explosion was conducted by USA in:
A. Jun-44
B. Sep-44
C. Jul-45
D. Aug-45
The correct answer to the question: "The following radioactive isotopes are formed by nuclear fission:" is "Sr90, I131 ".
