ESS
Grade-9
Easy
Question
Which of the following is the general rule for main sequence stars?
- The higher the surface temperature, the more luminous is the star.
- The higher the surface temperature, the lower is the mass of the star.
- The higher the surface temperature, the more common are binary stars.
- The higher the surface temperature, the more numerous are the stars.
Hint:
The higher the surface temperature, the more luminous is the star.
The correct answer is: The higher the surface temperature, the more luminous is the star.
- The main sequence stars are higher in range, brightness, and surface temperature.
- The brightness of the stars increases as the surface temperature increase.
- When the surface temperature is more, the luminescence will become more.
Related Questions to study
ESS
The origin of all stars is ____________.
The origin of all stars is ____________.
ESSGrade-9
ESS
The given image is of__________.

The given image is of__________.

ESSGrade-9
ESS
What is Light Year is defined as the _________.
What is Light Year is defined as the _________.
ESSGrade-9
ESS
Stars of similar temperatures but different sizes will have:
Stars of similar temperatures but different sizes will have:
ESSGrade-9
ESS
Star A = Red star and Star B = Blue star. Which one is hotter?
Star A = Red star and Star B = Blue star. Which one is hotter?
ESSGrade-9
ESS
Which is the one property of a main-sequence star that determines all its other properties?
Which is the one property of a main-sequence star that determines all its other properties?
ESSGrade-9
ESS
The CORRECT order of the stellar spectral sequence from the hottest to the coolest stars is _____________.
The CORRECT order of the stellar spectral sequence from the hottest to the coolest stars is _____________.
ESSGrade-9
ESS
The spectral class of a star is linked to its________.
The spectral class of a star is linked to its________.
ESSGrade-9
ESS
A star with an initial mass of 8 to 25 solar masses will eventually turn out to be a _________.
A star with an initial mass of 8 to 25 solar masses will eventually turn out to be a _________.
ESSGrade-9
ESS
When the Sun reduces its current core fuel, it will turn out to be a _______________.
When the Sun reduces its current core fuel, it will turn out to be a _______________.
ESSGrade-9
ESS
________ has the largest range in brightness and surface temperature.
________ has the largest range in brightness and surface temperature.
ESSGrade-9
ESS
Nova is a ____________.
Nova is a ____________.
ESSGrade-9
ESS
After full use of hydrogen the red giant becomes________.
After full use of hydrogen the red giant becomes________.
ESSGrade-9
ESS
Which of the following is the feature of white dwarf star?
Which of the following is the feature of white dwarf star?
ESSGrade-9
ESS
________ has the lowest density.
________ has the lowest density.
ESSGrade-9