Gk Questions with AnswersJudiciary Gk Questions and Answers
| 21. | The filament of an electric bulb is made of | ||
|---|---|---|---|
| A. Lead | |||
| B. Tungsten | |||
| C. Aluminium | |||
| D. Copper | |||
| Answer | ||
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| 22. | Wilhelm Rontgen invented | ||
|---|---|---|---|
| A. Radio | |||
| B. Electric motor | |||
| C. Electric bulb | |||
| D. X ray machine | |||
| Answer | ||
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| 23. | Which of the following is the best conductor of electricity? | ||
|---|---|---|---|
| A. Silver | |||
| B. Gold | |||
| C. Copper | |||
| D. Aluminium | |||
| Answer | ||
|
| 24. | CT scan is done by using | ||
|---|---|---|---|
| A. Infra red rays | |||
| B. X rays | |||
| C. Ultrasonic waves | |||
| D. Visible lights | |||
| Answer | ||
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