During both the Vernal Equinox and Autumnal equinox, there is an equal amount of night and day
Vernal Equinox marks the beginning of Spring and Autumnal Equinox marks the beginning of Fall
hope this helps
This process is an example of chemical weathering
Answer:
Focal length of the mirror will be 660 mm
Explanation:
We have given that sunlight is focused at a distance of 330 mm in front of mirror
So focal length f = 330 m
We have to find the radius of curvature
Radius of curvature is double the focal length
So radius of curvature = 2× focal length = 2×330 = 660 mm
So focal length of the mirror will be equal to 660 mm
Answer:
The answer D ...............