Approximate diameter of Victoria leaf is

What is the approximate diameter of pollen grains in nanometers ?

What is the approximate diameter of pollen grains in nanometers ?

The ratio of the diameter of the sun to the distance between the earth and the sun is approximately 0.009. The approximate diameter of the image of the sun formed by a concave spherical mirror of radius of curvature 0.4 m is

The ratio of the diameter of the sun to the distance between the earth and the sun is approximately 0.009. The approximate diameter of the image of the sun formed by a concave spherical mirror of radius of curvature 0.4 m is

The ratio of the diameter of the sun to the distance between the earth and the sum is approximately 0.009 . The approximate diameter of the image of the sun formed by a concave spherical mirror of radius of curvature 0.4 m is

The approximate diameter of the sun is times the diameter of Earth.

What is the approximate diameter of a hydrogen atom ?