MCQOPTIONS
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| 1. |
Rocket engines lift a rocket from the earth surface because hot gas with high velocity [AIIMS 1998; JIPMER 2001, 02] |
| A. | Push against the earth |
| B. | Push against the air |
| C. | React against the rocket and push it up |
| D. | Heat up the air which lifts the rocket |
| Answer» D. Heat up the air which lifts the rocket | |