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You Are On Question Answer Bank SET 1984
99201. Persistence of sound?
Answer: 1/10 seconds
99202. " എനിക്ക് രണ്ടായിരം പട്ടാളക്കാരെ തരൂ , ഞാൻ ഇന്ത്യ കീഴ്പ്പെടുത്താം "_ എന്ന് പറഞ്ഞത് ആര് ? [" enikku randaayiram pattaalakkaare tharoo , njaan inthya keezhppedutthaam "_ ennu paranjathu aaru ?]
Answer: റോബർട്ട് ക്ലൈവ് [Robarttu klyvu]
99203. മത്സ്യ ബന്ധനവും മായി ബന്ധപ്പെട്ട കമ്മീഷൻ ? [Mathsya bandhanavum maayi bandhappetta kammeeshan ?]
Answer: മീനാ കുമാരി കമ്മീഷൻ [Meenaa kumaari kammeeshan]
99204. " ഇന്ദ്രാവതി " കടുവ സങ്കേതം ഏതു സംസ്ഥാനത്താണ് ? [" indraavathi " kaduva sanketham ethu samsthaanatthaanu ?]
Answer: ചത്തീസ്ഗഡ് [Chattheesgadu]
99205. Ultrasound scanning uses high frequency?
Answer: Ultrasonic waves
99206. Echo and reverberation are due to the reflection of?
Answer: Sound
99207. Minimum distance required for the production of echo?
Answer: 17 meter
99208. Phenomenon utilized by bats to detect prey and obstacles in their path in night?
Answer: Echolocation
99209. For echolocation bats use?
Answer: Ultrasonic sound
99210. Depth of the sea is measured in?
Answer: Fathom
99211. 1 fathom =…?
Answer: 6 feet = 1.82 m
99212. It is an indication of object's internal energy or it is the degree of hotness/ coldness?
Answer: Temperature
99213. Heat is measured in the unit of?
Answer: Joule (J)
99214. The study of materials and phenomena at low temperature?
Answer: Cryogenics
99215. The temperature scale not having Negative temperature is?
Answer: Kelvin scale
99216. The amount of heat required to raise the temperature of 19m of water by 1°C?
Answer: One calorie
99217. The instrument used for measuring high temperature?
Answer: Pyrometer
99218. Amount of heat required to raise the, temperature of unit mass of a substance by 1°C is known as?
Answer: Specific Heat Capacity
99219. Substance having the highest specific heat capacity is?
Answer: Water
99220. The temperature above which a gas cannot be liquefied?
Answer: Critical temperature
99221. Element with the highest specific heat is?
Answer: Hydrogen
99222. Absolute Zero is?
Answer: 0 Kelvin = -273.15°C
99223. The temperature which shows same measurement in Celsius and in Fahrenheit Scale?
Answer: -40
99224. Temperature which shows same measurement in Fahrenheit and in Kelvin Scale?
Answer: 574.25
99225. Process of exchange of hotter particles to the neighbouring colder particles is known as?
Answer: Conduction
99226. In solids, heat transfer takes place by?
Answer: Conduction
99227. Transfer of heat from hotter region carrying heat to a colder region is called?
Answer: Convection
99228. In liquid and gas, heat transfer takes place by?
Answer: Convection
99229. Land breeze and sea breeze is due to?
Answer: Convection
99230. Ocean currents Monsoon and trade winds are based on the principle of?
Answer: Convection
99231. Transmission of heat from one point to another without heating' the medium is called?
Answer: Radiation
99232. Heat from the sun reaches the earth by?
Answer: Radiation·
99233. Thermometer was invented by?
Answer: Galelio
99234. Mercury Thermometer was Invented by -?
Answer: Farenheit
99235. Clinical Thermometer was Invented by -?
Answer: Thomas Allbutt
99236. Normal temperature of human body?
Answer: 36.9°C ( 98.4°F; 310 K)
99237. Thermo Flask was Invented by?
Answer: Sir lames Dewar
99238. Thermo Flask prevents heat loss by?
Answer: Conduction and convection
99239. Glass used in thermo flask?
Answer: Borosilicate glass
99240. Substances which easily allows electricity to flow through them is called?
Answer: Conductors eg: silver; copper; mercury etc
99241. Substances which does not allow electricity to pass through it is called?
Answer: Insulators eg: plastic; mica; rubber; dry air etc
99242. Substances which allow electricity to flow through them partially?
Answer: Semiconductors eg: Germanium; Silicon
99243. Mica is a good conductor of heat but bad conductor of?
Answer: Electricity
99244. Copper and Aluminium are the metals commonly used in?
Answer: Electric circuit
99245. Insulators used in electrical system?
Answer: Porcelain or Glass
99246. Almost every liquid expands with increase in?
Answer: Temperature
99247. When the temperature of water is increased from 0°C to 40, the volume?
Answer: Decreases
99248. If the temperature is increased above 40 the volume starts?
Answer: Increasing
99249. Temperature at which water has least volume and high density?
Answer: 40°C
99250. Water expands on?
Answer: Freezing
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