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You Are On Question Answer Bank SET 2324
116201. Which orbit is Dum-bell shaped?
Answer: p-orbital
116202. Meson was discovered by?
Answer: Yukawa
116203. The photoelectric effect is described as the ejection of electrons from the surface of a metal when?
Answer: Light of suitable wavelength falls on it
116204. The charge on positron is equal to the charge on?
Answer: Proton
116205. Positive ions are formed from neutral atoms by loss of?
Answer: Electrons
116206. Cathode rays are?
Answer: Stream of electrons
116207. How many electrons are there in Na+?
Answer: 10
116208. How many moles are there in 140 g of Si(atomic mass of silicon is 28)?
Answer: 5
116209. Nuclear particles responsible for holding all nucleons together are?
Answer: Mesons
116210. Cathode rays can be deflected by?
Answer: Both types of fields
116211. Structure of solids is investigated by using?
Answer: X-rays
116212. The most suitable unit for expressing nuclear radius is?
Answer: Fermi
116213. Erg sec is the unit of?
Answer: Planck’s constant
116214. Maxwell is the unit of?
Answer: Magnetic flux
116215. Unit of solid angle is?
Answer: Steradian
116216. Pick out the only scalar quantity?
Answer: Power
116217. Five equal forces of 10 N each are applied at one point and all are lying in one plane. If angles between them are equal, the resultant of these forces wil be?
Answer: Zero
116218. Bernoulli’s principle does not explain?
Answer: Lift of a jet
116219. An ideal liquid flows through a horizontal tube of variable diameter. The pressure is lowest where the?
Answer: Velocity is highest
116220. When a fluid passes through the constricted part of a pipe its?
Answer: Velocity increases and pressure decreases
116221. The rate of leak from a hole in a tank is?
Answer: More if situated near the bottom
116222. Dynamic lift is related to?
Answer: Bernoulli’s theorem
116223. A gale blows over a house. The force due to the gale on the roof is?
Answer: In the upward direction
116224. A large tank having a small hole at the bottom is filled with water to a height h. if the stream of water coming out of the hole is directed vertically upwards it will?
Answer: Rise to height h
116225. The velocity of flow of a liquid through an orifice at the bottom of a tank depends on the?
Answer: Both (b) and (c)
116226. An application of bernoulli’s equation for fluid flow is found in?
Answer: Dynamic lift of an aeroplane
116227. What is the SI unit of pressure?
Answer: Pascal
116228. An object with a constant speed?
Answer: Is always accelerated
116229. Distance of stars is measured in?
Answer: Light year
116230. Earliest thermometer was developed by?
Answer: Galileo
116231. SI unit of temperature is?
Answer: Kelvin
116232. The correct value of 00C on the Kelvin scale is?
Answer: 27.315K
116233. The change in temperature of a body is 500C. the change on Kelvin scale is?
Answer: 50K
116234. The temperature of a gas is measured with a?
Answer: Pyrometer
116235. The temperature of the sun is measured with?
Answer: Pyrometer
116236. Fahrenheit scale divides two fixed points into?
Answer: 180 Parts
116237. SI unit of heat is?
Answer: Joule
116238. When an object is heated, the molecules of that object?
Answer: Began to move faster
116239. At oK the velocity of the molecule is?
Answer: Zero
116240. If the earth were to stop rotating the value of ‘g’?
Answer: Increases
116241. If we move from the equator to a pole the value og ‘g’?
Answer: Increases
116242. The escape velocity of a particle of mass m varies as?
Answer: m0
116243. If the earths were to skin faster, acceleration due to gravity at the poles?
Answer: Remains unchanged
116244. The total energy of a particle vibrating in S.H.M. is propotional to the squre of its?
Answer: Amplitude
116245. The young’s modulus for perfectly rigid body is?
Answer: Infinite
116246. The Modulus of rigidity of a liquid is?
Answer: 0
116247. The operating principle of a hydraulic press is?
Answer: Pascal’s principle
116248. A floating body always displaces liquid equal to its own?
Answer: Weight
116249. Bernoulli’s theorem is based on the conversation is?
Answer: Energy
116250. Bernoulli’s theorem is applicable to?
Answer: Flow of liquids
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