NBRC Previous Year Question Papers

Someone of you please get PHD entrance exam paper issued by National Brain Research Centre (NBRC)?

I will get the by National Brain Research Centre (NBRC), PHD entrance exam paper so that you can solve it easily.

Here is the paper

1. Name the process or processes which alternate (s) the passage of gamma rays through matter:
(a) Photoelectric effect
(b) Compton Recoils
(c) Pair Production
(d) All of these

2. How many quantum numbers do characterise an electron within an atom:
(a) Six
(b) Five
(c) Four
(d) Three

3. Write down the total number of particles inside the nucleus in terms of mass number (A) and atomic number Z:
(a) A–2Z
(b) 2A–Z
(c) 3A–2Z
(d) None of these

4. What is the name of the detecting device for discovery of positron:
(a) Electron Microscope
(b) Geiger-Muller Counter
(c) Bubble Chamber
(d) Cloud Chamber

5. Give the name of the process by which a positron and an electron coalesce to form photons:
(a) Pair Annihilation
(b) Compton Scattering
(c) Bremhausstrahlung
(d) Rutherford Scattering

PHD Entrance exam paper NBRC

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