Q. Consider the following astral bodies:
1. Sirius
2. Venus
3. Mars
The correct sequence in decreasing order of their brightness is:
1. Sirius
2. Venus
3. Mars
The correct sequence in decreasing order of their brightness is:
✅ Correct Answer: (D)
2, 1, 3
Explanation: The brightness of astral bodies is measured in apparent magnitude (lower values mean brighter objects). The correct decreasing order of brightness is:
1. Venus: Brightest object in the night sky after the Moon (Apparent magnitude: -4.9 to -3.5)
2. Sirius: Brightest star in the night sky (Apparent magnitude: -1.46)
3. Mars: Brightness varies depending on its position, but it is usually dimmer than Venus and Sirius (Apparent magnitude: -2.9 to +1.8)
Explanation by: Mr. Dubey
The brightness of astral bodies is measured in apparent magnitude (lower values mean brighter objects). The correct decreasing order of brightness is:
1. Venus: Brightest object in the night sky after the Moon (Apparent magnitude: -4.9 to -3.5)
2. Sirius: Brightest star in the night sky (Apparent magnitude: -1.46)
3. Mars: Brightness varies depending on its position, but it is usually dimmer than Venus and Sirius (Apparent magnitude: -2.9 to +1.8)
1. Venus: Brightest object in the night sky after the Moon (Apparent magnitude: -4.9 to -3.5)
2. Sirius: Brightest star in the night sky (Apparent magnitude: -1.46)
3. Mars: Brightness varies depending on its position, but it is usually dimmer than Venus and Sirius (Apparent magnitude: -2.9 to +1.8)