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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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