JOINT ENTRANCE 2011 PHYSICS QUESTIONS & ANSWERS

1. A material has Poisson's ratio 0.50. If a uniform rod of it suffers a longitudinal strain of 2*10^-3,then the percentage change in volume is
A. 0.6
B. 0.4
C. 0.2
D.Zero

Ans:-D

FATHERS OF DIFFERENT BRANCHES OF BIOLOGY

1.FATHER OF BIOLOGY =ARISTOTLE

2.FATHER OF BOTANY = THEOPHRASTUS

3.FATHER OF ZOOLOGY = ARISTOTLE

4.FATHER OF TAXONOMY = LINNAEUS

5.FATHER OF GENETICS = G. J. MENDEL

6.FATHER OF MICROBIOLOGY = LOUIS PASTUR

7.FATHER OF BACTERIOLOGY = LEEUWEN HOEK

8.FATHER OF VIROLOGY = STANLEY

9.FATHER OF IMMUNOLOGY = EDWARD JENNER

10.FATHER OF MEDICINE = HIPPOCRATES

11.FATHER OF ENDOCRINOLOGY = ADDISON

12.FATHER OF BIOCHEMISTRY = VON LEIBIG

SOME DISEASE AND THEIR MICROBES

DISEASE AND SCIENTIFIC NAMES

1.Leprosy = Mycobacterium leprae

2.Titenus = Clostridium tetani

3.Syphilis = Treponema pallidum

4.Kalazzar = Leishmania donovani

5.Typhoid = Salmonella typhi

6.Tuberculosis = Mycobacterium tuberculosis

7.Cholera = Vibrio choleri

8.Malaria = Palsmodium vivax

9.Pneumonia = Diplococcus pneumoniae

10.Diptheria = Corynebacterium diptheriae

11.Gonorrhea = Neisseria gonorrhoe

12.Dysentry = Entamiba histolytica

13.Jandis = Leptospira cecero haemorrhagiae

14.Hooping cough = Bordetelka pertusis

15.Taeniasis = Taenia solium

SOME SCIENTISTS AND THEIR DISCOVERIES OF BIOLOGICAL SCIENCES

1.Schleiden and Schwann : cell theory

2.Robert hook : cell

3.Robert Brown :discovered nucleus

4.Parkinzee : nomenclature of protoplasm

5.Knoll & ruska : electron microscope

6.Singer & nicholson : fluid mosaic model of plasma membrane

7.Benda : nomenclature of mitochondria

8.De dube : nomenclature of lysosome

9.Porter : discovered endoplasmic reticulam

10.Hekel : discovered plastid


11.Bovery : discovered centriole

12.Benden : discovered centrosome

13.Palade : nomenclature of ribosome

14.Walldeyer : discovered chromosome

15.Altman : nomenclature of DNA

16.Ballbiani : discovered polytin chromosome

17.Strassbarger : nomenclature of cytoplasm

18.William Harvey : Blood circulation system in human body

19.Frunk : nomenclature of vitamin