Basic Information of Daily Science Inventions and
101. Omithology is the---
- ক. Study of smells
- খ. study of muscles
- গ. Study of bones
- ঘ. Study of Birds
উত্তরঃ Study of Birds
102. Who invented the doctor's thermometer?
- ক. Galileo
- খ. Newton
- গ. Farenheit
- ঘ. Edison
উত্তরঃ Farenheit
104. Who proposed the chemical evolution of life?
- ক. Oparin
- খ. Haechel
- গ. Darwin
- ঘ. Lammarck
উত্তরঃ Oparin
105. The telephone was invented by---
- ক. Thomas More
- খ. James Watt
- গ. James Arkwright
- ঘ. Alexander Graham Bell
উত্তরঃ Alexander Graham Bell
106. Who among the following evolved the concept of relationship between mass and energy?
- ক. Dalton
- খ. Rutherford
- গ. Einstein
- ঘ. Planck
উত্তরঃ Einstein
- ক. Malaria
- খ. Diabetes
- গ. Tuberculosis
- ঘ. Cholera
উত্তরঃ Tuberculosis
109. Who among the the following is associated with the invention of computers?
- ক. Mac Millen
- খ. Rangabhashyam
- গ. Edison
- ঘ. Babbage
উত্তরঃ Babbage
110. Which one of the following gases is predominant in the atmosphere?
- ক. Carbon Di-oxide
- খ. Oxygen
- গ. Argon
- ঘ. Nitrogen
উত্তরঃ Nitrogen
114. Which human gland does secret growth hormone?
- ক. Pituitary Gland
- খ. Liver
- গ. Pancreas
- ঘ. Thalamus
উত্তরঃ Pituitary Gland
115. Which of the following is the working principle of a washing machine?
- ক. reverse osmosis
- খ. diffusion
- গ. centrifugation
- ঘ. dialysis
উত্তরঃ centrifugation
116. The tendency of a liquid drop to assume spherical shape is due to--
- ক. density
- খ. vapour pressure
- গ. surface tension
- ঘ. viscosity
উত্তরঃ surface tension
117. Who invented the miner's safety-lamp?
- ক. Thomas Savery
- খ. Sir Frank Whittle
- গ. Sir Thomas Malory
- ঘ. Alexander Graham Bell
উত্তরঃ Sir Frank Whittle
118. Which of the following statements is true?
- ক. temperature decreases with increase in altitude
- খ. temparatur increaseswith increase in altitude
- গ. temperature remains the same at any altitude
- ঘ. All of these
উত্তরঃ temperature decreases with increase in altitude
119. Which of the following is the mde of propagation of heat from the sun to the earth?
- ক. radiation alone
- খ. convection and radiation
- গ. conduction
- ঘ. convection alone
উত্তরঃ radiation alone
120. A nuclear reactor is a device to produce nuclear energy with the help of---
- ক. controlled chain reaction
- খ. graphite as fuel
- গ. nuclear fusion
- ঘ. uncontrolled chain reaction
উত্তরঃ controlled chain reaction
121. Which of the following is the main source of energy of the sun?
- ক. nuclear fission
- খ. nuclear fusion
- গ. both fission and fusion
- ঘ. All of these
উত্তরঃ nuclear fusion
122. On which principle does the tape recorder function?
- ক. Boyleis law
- খ. electromagnetic induction
- গ. eletrovalency
- ঘ. All of these
উত্তরঃ electromagnetic induction
123. While functioning what is the temperature level inside a refrigerator?
- ক. 350°
- খ. 500°
- গ. 400°
- ঘ. 450°
উত্তরঃ 400°
124. One liter of water is equivalent to how many kilograms?
- ক. 1.25 kg
- খ. 0.90 kg
- গ. 1.5 kg
- ঘ. 1 kg
উত্তরঃ 0.90 kg
125. Which of the following is a renewable source of energy?
- ক. coal
- খ. biomass
- গ. petroleum
- ঘ. kerosene
উত্তরঃ biomass