Physics
Grade-10
Easy
Question
Which of the following particles scatter preferentially?
- Water molecules
- Air molecules
- Dust particles
- Hail particles
Hint:
Air scatters light due to the molecules present in air that are electrically neutral and make the light wave move
The correct answer is: Air molecules
In air, the main scattering particles are nitrogen and oxygen molecules, both are electrically neutral overall, but they contain electrons which are negatively charged. When charged particles are subjected to an external electromagnetic field, they would respond by moving.
As we all know, light is essentially propagating electromagnetic (EM) waves. This basically means that light is made up of oscillating electric and magnetic fields (at right angles to each other) which transfers energy to things in its path. So, when light hits a molecule of air, the electrons within it would feel the field and react to it.
Related Questions to study
Physics
The formula for calculating the speed of light is ____.
The formula for calculating the speed of light is ____.
PhysicsGrade-10
Physics
The sun appears to be _____ in color during noon.
The sun appears to be _____ in color during noon.
PhysicsGrade-10
Physics
The white light can be obtained back from the spectrum generated when it is passed through a prism, by ______.
The white light can be obtained back from the spectrum generated when it is passed through a prism, by ______.
PhysicsGrade-10
Physics
Which of these colors of light has the lowest speed in the prism?
Which of these colors of light has the lowest speed in the prism?
PhysicsGrade-10
Physics
Which of the following colors scatter the least by the air molecules?
Which of the following colors scatter the least by the air molecules?
PhysicsGrade-10
Physics
Which of the following shows the correct order of colors of the spectrum generated by a prism when white light passes through it?
Which of the following shows the correct order of colors of the spectrum generated by a prism when white light passes through it?
PhysicsGrade-10
Physics
Rain showers in the early morning hours, when the Sun has just risen, after which a rainbow is formed. In which direction has the rainbow formed?
Rain showers in the early morning hours, when the Sun has just risen, after which a rainbow is formed. In which direction has the rainbow formed?
PhysicsGrade-10
Physics
The sun appears to be ______ in color during sunrise and sunset.
The sun appears to be ______ in color during sunrise and sunset.
PhysicsGrade-10
Physics
Which of the following processes is responsible for splitting white light into its constituent colors when it is passed through a prism?
Which of the following processes is responsible for splitting white light into its constituent colors when it is passed through a prism?
PhysicsGrade-10
Physics
Which of the following colors of light of the given wavelengths has the highest speed?
Which of the following colors of light of the given wavelengths has the highest speed?
PhysicsGrade-10
Physics
The size of the air molecules is _____ the wavelength of the visible light.
The size of the air molecules is _____ the wavelength of the visible light.
PhysicsGrade-10
Physics
Which of the following colors of light of the given wavelengths has the lowest speed?
Which of the following colors of light of the given wavelengths has the lowest speed?
PhysicsGrade-10
Physics
Choose the correct ascending order of arrangement of the colors of light in a prism.
A. Red
B. Blue
C. Violet
D. Green
Choose the correct ascending order of arrangement of the colors of light in a prism.
A. Red
B. Blue
C. Violet
D. Green
PhysicsGrade-10
Physics
The phenomenon where the light when passes through a medium is seen through the medium is called ____.
The phenomenon where the light when passes through a medium is seen through the medium is called ____.
PhysicsGrade-10
Physics
Why does the light not bend when it passes through the air?
Why does the light not bend when it passes through the air?
PhysicsGrade-10
