Question : Which of the following is not the correct statement about escape velocity?
Option 1: In our solar system, Jupiter has the highest escape velocity
Option 2: On the earth, the escape velocity is 11.2 km/s
Option 3: Escape velocity depends on the mass and radius of the celestial body
Option 4: In our solar system, Venus has the lowest Escape velocity
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Correct Answer: In our solar system, Venus has the lowest Escape velocity
Solution : The correct option is in our solar system, Venus has the lowest Escape velocity.
In our solar system, Mars has the lowest Escape velocity.
The Escape velocity is independent of the body's mass and the direction of projection. It is only determined by the mass and radius of the planet or Earth from which the body is projected.
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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 : The pitch of a sound depends on its
Option 1: Frequency
Option 2: Intensity
Option 3: Velocity
Option 4: Amplitude
Question : Which of the following is not a dwarf planet in our solar system?
Option 1: Cupid
Option 2: Makemake
Option 3: Ceres
Option 4: Haumea
Question : When an object is transferred from Earth to Moon _____________.
Option 1: its mass increases
Option 2: its weight increases
Option 3: its mass decreases
Option 4: its mass remains unchanged
Question : Due to the greenhouse effect:
Option 1: the temperature of the Earth is decreasing
Option 2: the temperature of the Earth is increasing
Option 3: the temperature of the Earth is constant
Option 4: No option is correct
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