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You Are On Question Answer Bank SET 2027
101351. Beta rays are emitted by the atom from?
Answer: The neutron of its nucleus
101352. The first product formed in Uranium 238 disintegration series is?
Answer: Thorium - 234
101353. Isotones differ only in the number of?
Answer: Neutrons
101354. Beta rays are a stream of?
Answer: Electrons
101355. A particle similar to electron carrying positive charge is called?
Answer: Positron
101356. What is Nuclear fission?
Answer: The process of splitting the nuclei of heavy atoms into two approximately equal masses
101357. What is Nuclear reactor?
Answer: Nuclear reactor is a device used to produce nuclear energy by controlled nuclear fission
101358. ഹോണ് ഓഫ് ആഫ്രിക്ക എന്നറിയപ്പെടുന്ന രാജ്യം ഏത് [Honu ophu aaphrikka ennariyappedunna raajyam ethu]
Answer: സോമാലിയ [Somaaliya]
101359. What is Moderator?
Answer: It is the substance used to slow down the fast neutrons in a nuclear reactor
101360. Write examples of Moderators:?
Answer: Graphite and heavy water
101361. What are control rods?
Answer: It is made of substance which can absorb neutrons and control the rate of chain reaction
101362. ചാഡ് വിക് വെള്ളച്ചാട്ടം സ്ഥിതി ചെയ്യുന്നത് ഏത് സംസ്ഥാനത്താണ് [Chaadu viku vellacchaattam sthithi cheyyunnathu ethu samsthaanatthaanu]
Answer: ഹിമാചൽ പ്രദേശ് [Himaachal pradeshu ]
101363. The most suitable particle for splitting the nucleus of an atom is?
Answer: Neutron
101364. The substances used to absorb neutrons are?
Answer: Cadmium or boron rods
101365. The minimum mass of a radio active substance required to sustain chain reaction is called its?
Answer: Critical mass
101366. The process of repeated fission of the remaining fissionable atoms by the neutrons produced by earlier fission is called?
Answer: Chain reaction
101367. Photoelectric effect, Theory of Relativity etc. were discovered by?
Answer: Albert Einstein
101368. Pressure cooker was invented by?
Answer: Denis Papin
101369. Electric bulb was invented by Thomas Alva Edison who is known as?
Answer: “Wizard of Menlo Park”
101370. Tachyons are the particles which travel faster than light. They are invented by a Keralite?
Answer: E.C.G. Sudarshan
101371. John Barden, Walter H. Barttain and William Shockley are the scientists who invented?
Answer: Transistor
101372. Laser was invented by?
Answer: Theodore H. Maiman
101373. “Radar” was invented by?
Answer: Albert H. Taylor and Leo C. Young Dynamite and Gun Powder were invented by the founder of Nobel Prize?
101374. Who invented “Clinical Thermometer”?
Answer: Thomas Cliford Albert
101375. ഇന്ത്യൻ മഹാസമുദ്രത്തിലെ ഏറ്റവും വലിയ ദ്വീപ് ഏത് [Inthyan mahaasamudratthile ettavum valiya dveepu ethu]
Answer: മഡഗാസ്കർ [Madagaaskar]
101376. Father of Atom bomb is?
Answer: Robert Oppenheimer
101377. Who discovered nuclear fission?
Answer: Otto Hahn
101378. ലിറ്റിൽ ടിബറ്റ് എന്നറിയപ്പെടുന്ന പ്രദേശം ഏത് [Littil dibattu ennariyappedunna pradesham ethu]
Answer: ലഡാക്ക് [Ladaakku]
101379. “Father of Hydrogen Bomb”?
Answer: Edward Teller
101380. Who first made an electromagnet?
Answer: William Sturger
101381. X-ray was invented by?
Answer: Wilhelm K Roentgen
101382. Who discovered the existence of the nucleus inside the atom?
Answer: Rutherford - in 1911
101383. Who propounded the theory of electrolysis?
Answer: Faraday
101384. Who discovered Battery (electric)?
Answer: Alessandro volta
101385. Who discovered superconductivity?
Answer: Cammerling Onnes
101386. Who invented Diesel Engine?
Answer: Rudolf Diesel
101387. What is called stress?
Answer: The restoring force per unit area set up inside the body is called stress
101388. What is the unit of stress?
Answer: C.G.S. system-dyne/cm2; M.K.S. system-newton / m2
101389. Which substance has the highest elasticity?
Answer: Steel
101390. What is the escape speed from the moon?
Answer: 2.37 km / sec.
101391. Which is the direction of rotation of a synchronous satellite of earth?
Answer: West to east
101392. മോഹൻജദാരൊ , ഹാരപ്പ എന്നീ പ്രാചീന നഗരങ്ങൾ ഇന്ന് ഏത് രാജ്യത്ത് സ്ഥിതി ചെയ്യുന്നു [Mohanjadaaro , haarappa ennee praacheena nagarangal innu ethu raajyatthu sthithi cheyyunnu]
Answer: പാകിസ്ഥാൻ [Paakisthaan]
101393. A particular star has mass twice that of sun. This star will end up eventually as a?
Answer: Black hole
101394. ടൈഗ്രിസ് നദി ഏത് രാജ്യത്തിലൂടെ ഒഴുകുന്നു [Dygrisu nadi ethu raajyatthiloode ozhukunnu]
Answer: ഇറാഖ് [Iraakhu]
101395. The escape velocity of a projectile from the earth is approximately?
Answer: 11.2 km / sec.
101396. As we go from the equator to the poles, value of ‘g’?
Answer: increases
101397. The weight of a body at the centre of the earth is?
Answer: Zero
101398. Weightlessness experienced while orbiting the earth in space ships is the result of?
Answer: Acceleration
101399. To an astronaut in a spaceship the sky appears black due to?
Answer: Absence of atmosphere in its neighbourhood
101400. The value of ‘g’ on equator is?
Answer: Minimum
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