In what year did Galileo first use an optical telescope to study the moon?

Related Mcqs:

1. Galileo was an Italian astronomer who _________?

   A. Developed the telescope
   B. Discovered four satellites of Jupiter
   C. Discovered that the movement of pendulum produces a regular time measurement
   D. All of the above

   Submitted by: Rashid Mehmood

2. Spring tides occur on new moon and full moon days because on these days_____________?

   A. Sun, moon and earth are in a straight line
   B. Sun and earth are at right angles
   C. Sun and moon are at right angles
   D. Earth and moon are at right angles

   Submitted by: Jameel Ahmed Solangi (Larkana

3. Titan, a moon of __________ , and Triton, a moon of _________ , have atmospheres mainly of _________.

   A. Saturn, Jupiter, Hydrogen
   B. Uranus, Neptune, Nitrogen
   C. Saturn, Neptune, Nitrogen
   D. Mars, Venus, Hydrogen

   Submitted by: Muhammad Abdullah

4. The distance between the optical centre of a convex lens and its principal focus is called its_______?

   A. Focal Length
   B. Radius of Curvature
   C. Power
   D. Magnification

   Submitted by: Rashid Mehmood

5. An optical instrument which is used measure the properties of visible light is called?

   A. Microscope
   B. Telescope
   C. Spectroscope
   D. Oscilloscope

   Submitted by: Hussain Ahmed

6. The planets visible to us without using a telescope are __________?

   A. 3
   B. 4
   C. 5
   D. 6

7. What was the first planet to be discovered using a telescope?

   A. Uranus
   B. Jupiter
   C. Venus
   D. Mercury

   Submitted by: Ashfaque Ali Khoso

8. What makes dark matter invisible to telescope?

   A. Dark matter interacts with electromagnetic force for very short duration
   B. Dark matter does not interact with electrostatic force
   C. Dark matter does not interact with electromagnetic force
   D. None of the above

   Submitted by: Muhammad Abdullah

9. Which month of calendar year can lack a new moon?

   A. December
   B. February
   C. May
   D. None

10. What causes the Moon’s phases?

    A. The Sun lights up only one half of the Moon and as the Moon orbits the Earth we can sometimes see the unlit side of the Moon.
    B. The Sun lights up only one half of the Moon and as the Sun orbits the Earth we can sometimes see the unlit side of the Moon.
    C. The Earth’s shadow falls on the Moon, blocking the sunlight.
    D. The Moon’s shadow falls on the Earth, blocking the sunlight.

    Submitted by: Mansoor Ul Haque