Pratiyogita Darpan

Question 1

An organism involved in the fermentation of Toddy is

Answer 1

Saccharomyces

Question 2

Litmus the acid based indicator is obtained from

Answer 2

Lichens

Question 3

Phenol is used in manufacturing of

Answer 3

Bakelite

Question 4

Pulse in the wrist beats at same rate as

Answer 4

Heart

Question 5

Human organ which is responsible for detoxification of alcohol is

Answer 5

Liver

Question 6

A geostationary satellite has a period of

Answer 6

24 hours

Question 7

the concept of expanding universe is based on

Answer 7

Doppler effect

Question 8

Anstrong is the unit of measurement of wavelength of

Answer 8

Light

Question 9

The synthetic radioactive isotope of Cobalt used in the treatment of cancer deep inside the body is

Answer 9

Cobalt - 60

Question 10

Amniocentesis is a method used to determine

Answer 10

The foetal Sex

Question 11

The commonly used rat poison is

Answer 11

Zinc Phosphide

Question 12

Electric bulb filament is made of

Answer 12

Tungsten

Question 13

Indane Gas is a mixture of

Question 14

Morphine and Boric acid respectively are

Answer 14

Analgesic and Antiseptic

Question 15

The minmum height of a plane mirror to see the full size image of a person is

Answer 15

Half the height of the person

Question 16

BMD(Bone Marrow Density) testing is done to diagonise

Answer 16

Osteoporosis

Question 17

Helium is preferred to hydrogen in air balloons because

Answer 17

it is less dense

Question 18

Retina of Human eye is comparable to which part of conventional camera

Question 19

The principle of Black Hole was enunciated by

Answer 19

S.Chandrashekhar

Question 20

Anosmia is

Answer 20

The loss of sense of smell

Sense of smell is also calle olfaction

Question 21

the normal function of kidney is regulation of

Answer 21

blood sugar level