Everyday Science Test 12
Total Questions: 29
A ) Red rays
B ) Yellow rays
C ) Blue rays
D ) Violet rays ✅
A ) 1275 miles per hour
B ) 755 Mile per hour
C ) 332 miles per hour
D ) 760 miles per hour ✅
Explanation:
The speed of sound is the distance travelled per unit of time by a sound wave as it propagates through an elastic medium. At 20 °C (68 °F), the speed of sound in air is about 343 metres per second (1,125 ft/s; 1,235 km/h; 767 mph; 667 kn), or one kilometre in 2.91 s or one mile in 4.69 s.
A ) Longitudinal ✅
B ) Transverse
C ) Neither longitudinal nor transverse.
D ) Stationary
A ) Transverse waves ✅
B ) Longitudinal wave
C ) Stationary waves
D ) Progressive waves
A ) Electric lamp
B ) Kerosene oil lamp
C ) Sun ✅
D ) None
A ) Constant ✅
B ) Directly proportional to wavelength
C ) Inversely proportional to wavelength
D ) Dependent on frequency
A ) Laws of reflection ✅
B ) Laws of refraction
C ) Dispersion
D ) None
A ) A spherical ball polished on its surface
B ) A plane mirror only
C ) A large number of plane mirrors equally inclined to each other ✅
D ) None
A ) Increases ✅
B ) Decrease
C ) Does not affect
D ) All the above possible depending on the instrument
A ) Calcium Hydroxide
B ) Solid carbon dioxide ✅
C ) Sodium Hydroxide
D ) None
A ) Vitamins
B ) Carbohydrates ✅
C ) Proteins
D ) All these
A ) Carbon monoxide
B ) Methyl isocyanate ✅
C ) Ethyl Cyanide
D ) Phenyl isocyanate
A ) Burning of coal
B ) Burning of paper
C ) Burning of wood
D ) Conversion of water into steam ✅
A ) Calcium chloride
B ) Sodium hydroxide
C ) Sodium hypochlorite
D ) Sodium chloride ✅
A ) Citric acid
B ) Ascorbic acid ✅
C ) Oxalic acid
D ) Nitric acid
A ) Water
B ) Sulphuric acid
C ) Chlorine ✅
D ) Sulphur dioxide
A ) Nitrogen
B ) Phosphorus ✅
C ) Sodium
D ) Potassium
A ) Alpha black phosphorus
B ) White phosphorus
C ) Red phosphorus ✅
D ) Beta black phosphorus
A ) Sodium bicarbonate ✅
B ) Sodium carbonate
C ) Sodium chloride
D ) Sodium hydroxide
A ) Kidney ✅
B ) Liver
C ) Pancreas
D ) Spleen
A ) Lucien
B ) Arginine
C ) Glycerin ✅
D ) Valine
A ) Cornea
B ) Mucus
C ) Ciliary body ✅
D ) Conjunctiva
A ) Vitamin A ✅
B ) Vitamin B
C ) Vitamin C
D ) Vitamin D
A ) 30g
B ) 35g
C ) 41g
D ) 46g ✅
A ) Calcium
B ) Iron ✅
C ) Potassium
D ) Protein
A ) Hydrolysis
B ) Oxidation
C ) De-emulsification
D ) Emulsification ✅
A ) Hydrogen bonding ✅
B ) Hydration
C ) Van dar Wall's forces
D ) Chemical reaction
A ) Gas in gas
B ) Gas in water ✅
C ) Gas in solid
D ) Solid in liquid
A ) 50 million
B ) 10 million
C ) 150 million ✅
D ) 110 million