General Science 10th Class English Medium Chapter 10 Online Test With Answers

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General Science 10th Class English Medium Chapter 10 Online Test

Sr. # Questions Answers Choice
1 If we increasing angle of incidence then at a particular angle incidence the angel of refraction is. 45 <sup>o</sup> 60 <sup>o</sup> 30 <sup>o</sup> 90 <sup>o</sup>
2 Bagasse is used as in. Sugar mills Cattle feeds Alcohol Cotton textile
3 Element having atomic numebr greater than.......... go on emitting radiations. 80 92 82 83
4 Phosphorous.... and sulphur 35 are employed on living system to trace metabolic path. 31 30 38 32
5 ----------------- rays are used to detect the flaws and crocks of metal parts. a -rays gama rays beta rays None of these
6 In ........ henry Bequeral discovered. 1895 1886 1896 1898
7 Which radiation have zero mass number Alpha radiation Beta ratiation Gamma radiation None of these
8 In engineering department besides heavy machinery the role of ....... industry is examplary. Cottage Steel Electrical Paper
9 Laser is used toproduce three -Dimensional image called. Holograms Holography Lithotropsy Radioactive elements
10 ---------------- lasers are presently used for operating cataract and glaucoma. Argon Neon Helium Hydrogen
11 The principal of light on whihc the fibre optics works is. Reflection Refraction Total internal reflection Dispersion
12 Radioactivity occurs naturally from all the elecments with atomic number greater than. 62 72 80 82
13 Frequency of ultrasound is. Less than 20 Hz 20 KHz 30 KHz More than 20 khn
14 Emission of ratiations from nucleus is said to be Chemical reaction Atomic reaction Radioactivity Nuclear fission
15 Which type of rays are used in the solar system fitted on ships and submarines to find the hidden secrets under water: x - rays C.T Scan Ultrasound Light
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