Spherical Raindrop: Monochromatic Light
Trending Questions
Q.
In the formation of primary rainbow, the sunlight rays emerge at from a raindrop after
One internal reflection and one refraction
Two internal reflections and one refraction
Two internal reflections and two refractions
One internal reflection and two refractions
Q.
Why does a rainbow form an arc? Why does not it go straight?
Q. Total Internal Reflection takes place inside a raindrop.
- True
- False
Q. Which of the following phenomena of light are involved in the formation of a rainbow?
- Reflection, refraction and dispersion
- Refraction, dispersion and total internal reflection
- Refraction, dispersion and internal reflection
- Dispersion, scattering and total internal reflection
Q.
Why secondary rainbow is fainter than the primary rainbow??
Q. Consider a spherical wavefront incident on a plane mirror. After reflection, we will get,
- a cylindrical wavefront
- a spherical wavefront
- a plane wavefront
- Insufficient information
Q. When light rays undergoes two internal reflection inside a raindrop, which of the rainbow is formed. ?
- Cant say
- Both (a) and (b)
- Primary rainbow
- Secondary rainbow
Q. Total Internal Reflection takes place inside a raindrop.
- True
- False
Q.
A passenger in an aeroplane shall
(a) never see a rainbow
(b) see primary and secondary rainbow as concentric circles
(c) see primary and secondary rainbow as concentric arc
(d) none of the above.
Q. How is the Law of reflection used in everyday life and in science?
Q. The internal reflection which occurs inside water droplet in case of rainbow is a total internal reflection , then how secondary rainbow is fainter than primary rainbow as no light is escaping from the drop by relection ? I have read that in TIR , there is no absorption of light ray by the surface and hence the intensity is same .
Q. In organ pipe reflection does not take place exactly at open end due to :
- finite elasticity of air molecules
- finite momentum of air molecules
- finite weight of air molecules
- finite elasticity of graph pipe
Q.
how does the formation of secondary and primary rainbow occurs?
Q. A student noticed a rainbow appearing in the sky. If he walked towards it, what will happen to the apparent height of the rainbow above the ground?
- It decreases
- It remains the same
- It increases
- It may increase or decrease
