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60 questions
11
Scientists & Inventions
Moderate
+1.0
-0.25
‘Telephone’ was invented by —
12
Scientists & Inventions
Moderate
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Who discovered electric bulb?
13
Scientists & Inventions
Moderate
+1.0
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Gas engine was invented by :
14
Scientists & Inventions
Moderate
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-0.25
Who was the inventor of the fountain pen?
15
Scientists & Inventions
Moderate
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-0.25
Who was the inventor of Radar —
16
Scientists & Inventions
Moderate
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Alfred Nobel invented -
17
Scientists & Inventions
Moderate
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Who discovered Television?
18
Scientists & Inventions
Moderate
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With what invention is the name of J.L. Baird associated with?
19
Scientists & Inventions
Moderate
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Who among the following invented Laser ?
20
Scientists & Inventions
Moderate
+1.0
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Which one of the following pairs is NOT correctly matched?