18. Which of the following describes the usual way by which a material can gain a positive charge? A. By gaining protons B. By gaining electrons C. By losing protons D. By losing electrons
19. Maris is analyzing the reflection of the light and she noticed that in way of light is always in a? A bend path B. straight line C. convergent path D. divergent path
20. Angle between incident ray and normal ray called angle of.? A incident B. reflection C. refraction D. transmission
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19. Maris is analyzing the reflection of the light and she noticed that in way of light is always in a? A bend path B. straight line C. convergent path D. divergent path
20. Angle between incident ray and normal ray called angle of.? A incident B. reflection C. refraction D. transmission
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Answer:
18.losing electrons . As the number of protons in the nucleus of an atom is fixed where as a non metal can lose or gain electrons so as to achieve stable electron8c configuration of the nearest noble gas
19.C.
20.angle of incidence
Explanation:
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Answer:
18.C
19.B
20.C
Explanation:
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