211. Knot is used for measuring:
(a) Speed of ship (b) Speed of light
(c) Wavelength (d) Speed of Plane
Answer: (a)
212. The vehicle used to lauch India’s first satellite,
Aryabhatta:
(a) Cosmos (b) Salyut
(c) Echo (d) Telstar
Answer: (a)
213. The total kinetic energy of molecules in a substance is known
as:
(a) Force (b) Motion
(c) Heat (d) Energy
Answer: (c)
214. The first space station:
(a) Skylab (b) Salyut-1
(c) Sputnik (d) Cosmos
Answer: (b)
215. The first advertisement telecast on TV was about:
(a) Watch (b) Pen
(c) Car (d) Radio
Answer: (a)
216. Which colour absorbs heat the least:
(a) Black (b) White
(c) Red (d) Violet
Answer: (b)
217. Almost all aircraft flight occurs in the______
(a) Exosphere (b)
Troposphere&Stratosphere
(c) Ionosphere (d) Thermosphere
Answer: (b)
218. The study of motion:
(a) Accoustics (b) Cryogenics
(c) Optics (d) Dynamics
Answer: (d)
219. The half life of Carbon-14 Isotope is ....... years.
(a) 5760 (b) 4560
(c) 4500 (d) 2400
Answer: (a)
210. What is used as fuel in aeroplanes?
(a) Benzene (b) Toluene
(c) Gasolin (d) Naphta
Answer: (c)
211. In which form matter exist in nature in the largest
quantity?
(a) Solid (b) Liquid
(c) Gas (d) Plasma
Answer: (d)
212. The frequency of electricity used for domestic purpose:
(a) 100 Hz (b) 230 Hz
(c) 50 Hz (d) 250Hz
Answer: (c)
213. Thermometer measures:
(a) Pressure (b) Force
(c) Temperature (d) Speed
Answer: (c)
214. The temperature at which Celcius and Fahrenheit scales are
equal:
(a) Minus 40 (b) Minus 273
(c) Zero (d) Minus 32
Answer: (a)
215. Ecosounder measures .....
(a) Temperature (b)
Depth of water bodies
(c) Speed of aircrafts (d) Frequency
Answer: (b)
216. Natural magnets are known as:
(a) Lode stones (b) Corundum
(c) Gypsom (d) Carborundum
Answer: (a)
217. Which colour is in the middle of rainbow?
(a) Yellow (b) Blue
(c) Green (d) Indigo
Answer: (c)
218.The fourth form of matter?
(a) Liquid (b) Solid
(c) Plasma (d) Gas
Answer: (c)
219. At which region of the Earth a body has the maximum weight?
(a) Equator (b) Tropic of Cancer
(c) Tropic of Capricorn (d) Poles
Answer: (d)
220. Force between same type of molecules:
(a) Adhesion (b) Cohesion
(c) Repulsion (d) Conjugation
Answer: (b)
221. Force between different type of molecules:
(a) Conjugation (b) Immersion
(c) Adhesion (d) Repulsion
Answer: (c)
222. The metal used in Thermometers:
(a) Mercury (b) Lead
(c) Sodium (d) Silver
Answer: (a)
223. For measuring very high temperature, ...... is used:
(a) Heliometer (b) Kymoscope
(c) Pyrometer (d) Otometer
Answer: (c)
224. Water has maximum density at ..... degree celcius:
(a) Zero (b) Minus 4
(c) Four (d) 100
Answer: (c)
225. Bose Einstein condensate is ......th form of matter:
(a) 5 (b) 4
(c) 6 (d) 7
Answer: (a)
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