ENTRANCE TEST – 2013 Multiple Questions and Answers.




31.10 Joule of energy is absorbed by 10-gram mass from a radioactive source. What is the absorbed dose?
A. 1 gray
B. 1000 gray
C. 10 gray
D. 100 gray

32.Isotopes are those nuclei of an element that have:
A. Same mass number but different atomic numbe
B. Same mass number as well as atomic number
C. Different mass number as well as atomic number
D. same atomic number but different mass numbe

33.Which one of the following emission takes place in a nuclear reaction? 90Th234 91Pa232 + ___
A. Alpha
B. Gamma
C. Beta
D. Photons

34.Emission of radiation from radioactive substance is:
A. Dependent on both temperature and pressure
B. Independent of temperature but dependent on
C. Independent of both temperature and Pressure
D. Independent of pressure but dependent on

35.In a simple harmonic motion with a radius ‘xo’, the velocity of the particle at any point is:
A. v = ωxo 2 − x2
B. v = ω(x2 − xo 2)
C. v = ω(xo − x)
D. v = ω(x − xo)

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