AQA A-LEVEL PHYSICS Paper 3 Section B
Astrophysics 2025 Question Paper & Mark Scheme
(Merged)
,
, 2
Do not write
outside the
Section B
box
Answer all questions in this section.
0 1 HIP 56948 is a star with a black-body temperature of 5800 K. The star is at a distance
of 210 ly from the Sun.
0 1 . 1 Sketch, on Figure 1, the black-body curve for HIP 56948.
Label the wavelength axis with a suitable scale and unit.
[3 marks]
Figure 1
0 1 . 2 The diameter of HIP 56948 is the same as the diameter of the Sun.
Suggest a value for the absolute magnitude of HIP 56948.
[1 mark]
absolute magnitude =
0 1 . 3 Astronomers study HIP 56948 in their search for Earth-like exoplanets because
HIP 56948 is similar to the Sun.
for more: tyrionpapers.com
IB/M/Jun25/7408/3BA
, 3
Do not write
outside the
Suggest one difficulty in detecting an Earth-like planet around HIP 56948.
[1 mark]
0 2 .
5
for more: tyrionpapers.com
IB/M/Jun25/7408/3BA
Astrophysics 2025 Question Paper & Mark Scheme
(Merged)
,
, 2
Do not write
outside the
Section B
box
Answer all questions in this section.
0 1 HIP 56948 is a star with a black-body temperature of 5800 K. The star is at a distance
of 210 ly from the Sun.
0 1 . 1 Sketch, on Figure 1, the black-body curve for HIP 56948.
Label the wavelength axis with a suitable scale and unit.
[3 marks]
Figure 1
0 1 . 2 The diameter of HIP 56948 is the same as the diameter of the Sun.
Suggest a value for the absolute magnitude of HIP 56948.
[1 mark]
absolute magnitude =
0 1 . 3 Astronomers study HIP 56948 in their search for Earth-like exoplanets because
HIP 56948 is similar to the Sun.
for more: tyrionpapers.com
IB/M/Jun25/7408/3BA
, 3
Do not write
outside the
Suggest one difficulty in detecting an Earth-like planet around HIP 56948.
[1 mark]
0 2 .
5
for more: tyrionpapers.com
IB/M/Jun25/7408/3BA
