General science information in gujarati language

Learn information about general science :

1) Who was the scientist who said “atoms of some elements are not identical”?

– F.W Aston

2) Who was the first scientist to observe ultraviolet rays?

– Johann Wilhelm Ritter- 1801

3) Which of the seven colors has the highest and lowest speed of light?

– Most red and most purple

4) Explain the definition of light?

– “Electromagnetic radiation that produces sensation in the eye is light.”

5) Greek word ‘;nano’; What does mean?

– Dwarf, Thinguji, Dwarf. Nano means mathematically: 1,000,000,000th of a meter. 1 nano meter (nm) =10 ^-9

6) How many bones are there in the human body?

– Total :213

7) How many bones are there in clavicle, hip joint, ear and palate?

– In Skandhamekhala : 04,

– Buttock Front:02,

– In the ear :03

– (in both ears :06 ),

– Palate:01

8) How many bones are there in the foot?

– (Both leg bones : 60 ) Hip bone : 01,

– Knee joint :01,

– Between knee and ankle :02,

– Ankle bone :07,

– Bones of the sole of the foot :05,

– Finger bones :14

9) How many bones are there in the hand?

– (Total bones of both arms :60) From shoulder to elbow :01,

– Elbow to wrist :02,

– Carpal bones :08,

– Palm bones :05,

– Finger bones :14

10) How many vertebrae are there in the spine?

– 33 beads

11) How many bones are there in the human rib cage?

– Twelve pairs of ribs :24,

-bone between the ribs :01

12) How many bones are there in human skull?

– Head bones: 08, facial bones: 14

13) How much time does earth take to make one revolution on its axis?

– Takes 23 hours and 56 minutes.

14) Which planet takes the longest time to orbit the Sun?

– Pluto (248 years)

15) Which planet takes the least time to orbit the Sun?

– Mercury (88 days)

16) When does lunar eclipse occur?

– Lunar eclipses occur when the Earth comes between the Sun and the Moon.

– Lunar eclipse occurs on Poonam day.

17) How does a solar eclipse occur?

– A solar eclipse occurs when the moon comes between the sun and the earth. A solar eclipse occurs on a new moon day.

18) State the amount of gases in the atmosphere?

– Nitrogen: 78%, Oxygen: 21%, Helium, Neon, Argon, Ozone, Xenon, Radon, Water Vapor and Particulate Matter: 0.96%, Carbon Dioxide: 0.04%

19) What is the approximate speed of a human sneeze?

– 160 -170 km

20) How much does head hair grow every month?

– 11-12 inches

21) Applying a force on an object does not change its shape?

– in mass of matter

22) What does the interior of a candle flame look like?

– Brown

23) What is mainly present in biogas?

– Methane gas

24) What is the maximum temperature that human skin can tolerate?

– 60* cm.

25) Electric bulb works according to which principle?

– Conversion of electrical energy into light energy

26) CV Raman received the Nobel Prize in which field?

– Physical Science

27) What was the first life on earth?

– In the water

28) Whose autobiography is this? “The Man Who Knew Infinity”.

– Srinivasa Ramanujan

29) Which organ of the body excretes water, fat and metabolic waste?

– Skin

30) Who invented the supercomputer?

– J.H. Tussell

31) What exactly is X-ray?

– Electromagnetic waves

32) T.V. In which scene on the screen is formed by the combination of three colors?

– Red, Green, Blue

33) Which factor plays a role in determining the sex of a child?

– Chromosome of the father

34) ICs used in computers and electronic items are made of what?

– from silicon

35) What kind of container is used to fill sulfuric acid quickly?

– Glass vessel

36) Which material is used as a semi-conductor?

– Silicone

37) What is the speed of sound?

– 346 m/sec

38) The weight of an object is less at the equator than at the Earth’s poles.

– Because the radius of the polar region is less than the radius of the equator of the earth, hence the gravity is more on the polar region.

39) A piece of ice floats in water but sinks in alcohol?

– A piece of ice is lighter than water and heavier than alcohol.

40) Which endocrine system is necessary for the digestion of milk?

– Renin

41) State the main components of pearl?

– Calcium carbonate and magnesium carbonate.

42) Who manufactures Vitamin D for the body?

– Skin

43) Which gas makes lime water milky?

– Carbon dioxide

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