Question : The speed of light in a vacuum is:
Option 1: 399,792.458 km/s
Option 2: 499,792.458 km/s
Option 3: 199,792.458 km/s
Option 4: 299,792.458 km/s
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Correct Answer: 299,792.458 km/s
Solution : The correct option is 299,792.458 km/s.
The speed of light in a vacuum is approximately 299,792.458 kilometres per second (km/s) or about 186,282 miles per second (mi/s). This is often denoted by the symbol "c" in scientific equations and is a fundamental constant of nature.
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Question : What is the approximate speed (in km/s) of the Earth in its orbit around the Sun?
Option 1: 500
Option 2: 10
Option 3: 100
Option 4: 30
Question : Directions: Sabmitra walks 4 km towards the north, turns right, and walks 5 km. Then he turns towards the south and walks 2 km. Again he takes a turn towards the west walks 3 km and stops for a while. Then he walked 2 km. What is the distance of Sabmitra from the starting point?
Option 1: 16 km
Option 2: 2 km
Option 3: 4 km
Option 4: 3 km
Question : The distance of 10 longitude on Earth is almost equal to which of the following?
Option 1: 24 km
Option 2: 69 km
Option 3: 111 km
Option 4: 152 km
Question : Directions: Manjot cycles X km towards the North and then turns left and cycles Y km to reach her shop. The shortest distance between the starting point and her shop is 5 km. What can be the value of X and Y in km?
Option 1: 3 km and 4 km
Option 2: 8 km and 4 km
Option 3: 3 km and 5 km
Option 4: 4 km and 6 km
Question : Directions: Prince drives 8 km towards the east from point A. He takes a right turn and drives 3 km. Again, he takes a right turn and drives 5 km. He takes a right turn and drives 8 km. Finally, he takes a left turn and drives 3 km to reach point B. How far and towards which direction should he drive now to reach point A again?
Option 1: 3 km towards the west
Option 2: 5 km towards the south
Option 3: 2 km towards the east
Option 4: 4 km towards the north
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