Question:
What portion of the moon is visible from the earth's surface?
Answer:
Upto 57%
Question:
Why do the sky appear dark instead of blue to an astronaut?
Answer:
No Atmosphere
Question:
Who won the Nobel Prize for his work on the photoelectric effect?
Answer:
Albert Einstein
Question:
Which type of device is used to measure the diameters of stars and our galaxy (Milky Way)?
Answer:
Photometer
Question:
Chief of the Air force is called _____.
Answer:
Air Chief Marshal
