Q. The light coming from stars gives the idea of their ________
✅ Correct Answer: (D)
Temperature
Explanation: The color and spectrum of starlight provide information about a star’s temperature.
Hot stars emit more blue light.
Cooler stars emit more red light.
The Wien’s displacement law helps determine a star's temperature based on its peak wavelength of emitted light.
Other options:
(A) Size → Determined using luminosity and distance.
(B) Rotational speed → Determined using Doppler shift in spectral lines.
(C) Mass → Determined using gravitational effects in binary star systems.
Explanation by: Mr. Dubey
The color and spectrum of starlight provide information about a star’s temperature.
Hot stars emit more blue light.
Cooler stars emit more red light.
The Wien’s displacement law helps determine a star's temperature based on its peak wavelength of emitted light.
Other options:
(A) Size → Determined using luminosity and distance.
(B) Rotational speed → Determined using Doppler shift in spectral lines.
(C) Mass → Determined using gravitational effects in binary star systems.
Hot stars emit more blue light.
Cooler stars emit more red light.
The Wien’s displacement law helps determine a star's temperature based on its peak wavelength of emitted light.
Other options:
(A) Size → Determined using luminosity and distance.
(B) Rotational speed → Determined using Doppler shift in spectral lines.
(C) Mass → Determined using gravitational effects in binary star systems.