Question : 'Parsec' is the unit measurement of
Option 1: density of stars
Option 2: astronomical distance
Option 3: the brightness of heavenly bodies
Option 4: orbital velocity of giant stars
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Correct Answer: astronomical distance
Solution : The correct option is astronomical distance.
In astronomy, the unit of measurement used to represent the immense distances between celestial objects is the parsec. Calculating cosmic distances on the scale of galaxies and interstellar space is its specific application. The name "parsec," which stands for parallax arcsecond, is derived from the idea of parallax, which is the apparent change in an object's position when viewed from variable angles.
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Question : Which of the following has unit m/s2?
Option 1: Speed
Option 2: Distance
Option 3: Acceleration
Option 4: Velocity
Question : ______ is a change of position.
Option 2: Velocity
Option 3: Motion
Option 4: Distance
Question : Which of the following is a unit of distance?
Option 1: Newton
Option 2: Watt
Option 3: Light-year
Option 4: Joule
Question : ______ - The time graph shows the speed of an object.
Option 1: Velocity
Option 3: Displacement
Option 4: Acceleration
Question : Which among the following is also called as 'the power house of the cell'?
Option 1: Plastids
Option 2: Mitochondria
Option 3: Golgi bodies
Option 4: Cell wall
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