Science Questions & Answers

1.The lense which is used in Photography is.......
              Convex Lense

2.The Gas used for artificial ripening of green fruits?
              Acetylene

3.Which is the rarest element?
              Astatine

4.Magnetic field is measured by..........
              Flux Meter

5.The working of a Rocket is based on the principle of ?
              Newton's Law

6.The minimum volume of water is at a temperature of ......... Degree Celsius
              4

7.Light emitted by sun reaches earth in about 
              8 minutes

8.Electricity was invented by
              Michael Faraday

9.The human heart beat per minute at an average is
              72

10.Time difference between IST and GMT is
              5.30hrs

11.Which country built the first nuclear power station?
              Russia

12.Plaster of Paris is made from
              Gypsm

13.Meningitis is a disease which affects the 
              Brain

14.The year in which Pluto was discovered ?
              1930

15.White Coal is 
              Hydro-Electricity

16.Purest crystalline form of Carbon
              Diamond

17.Valcanisation was conducted by
              Good Year

18.What is the melting point of Diamond?
              4000 Degree Celsius

19.Which of the following is not a natural polymer ?
(a)Cellulose   (b)Plastic     (c)Rubber   (d)Silk
Answer:-(a)Cellulose

20.During Sleep 
              Blood Pressure is reduced

21.Filteration of wastes from the blood in human body is done by
              Kidney

22.An astronant in an earth satellite will observe the sky as
              Black

23.The virus of AIDS affects the growth of
              T cells in Blood

24.Which of the following is a semi conductor ?
              (a)Copper
              (b)Germanium
              (c)Silver
              (d)Zirconium
Answer:-Germanium

25.A hole is made in a brass plate and it is heated , the size of the hole will
              First increases and then decrease

26.Sugar can be tested in a Diabetic patient by
              Benedict's test

27.The sex of a child before birth can be determined by
              Amniocentesis

28.Plants growing in dark areas are called
              Scatophyte

29.The resting time of heart during the interval of each compression is called
              Diastol

30.'Utopia Planitia' is a place in which planet/satellite
              Mars

31.The organism which have nervous system but do not have brain
              Hydra

32.Antitoxins is used against Diptheria obtained from
              Horse

33.The satellite which discovered the Ozon layer
              Nimbus-7

34.Osteomalaria is caused due to the deficiency of which Vitamin ?
              Vitamin D

35.The sea breeze and land breeze are caused by difference in
              Heating of land and sea

36.The Red blood cells (RBC) is also called as 
              Erythrocyctes

37.Quinine is an alkaloid that cures which disease ?
              Malaria

38.Boiling point of water in the Farenheat scale is 
              212 Degree

39.The most essential component of a refrigerator is
              Compressure

40.The planet which is often called the earth twin is 
              Venus

41.What does C.N.G. stands for              Compressed Natural Gas

42."Which sphere is known as ""Chemosphere"" ?"
              Ozonosphere

43.Magnesite is
              Magnesium Carbonate

44.Which of the follwing is known as Ramanujan Numeral 
              1729

45.Normal Blood Pressure of man is 
              80/120 mm HG

46.The deficiency of Iron in man may result in
              Anaemia

47.The largest gland in Human body is
              Liver

48.Fossils are usually found in
              Sedimenary Rock

49.Acetyl Salicilic Acid is commonly known as
              Aspirin

50.Which is known as white coal
              Hydro Electricty