Answer:
a. reflection of all the light at a surface.
Explanation:
When light rays passing from the denser medium to the rarer medium and the angle of incidence is greater than the critical angle, the refraction of light does not take place and the incident ray is totally reflected back into the denser medium. This phenomenon is called total internal reflection.
There are two conditions that need to be fulfilled in order for the total internal reflection to take place:
1. The ray of light should be incident from denser to rarer medium.
2. The angle of incidence should be greater than the critical angle.
Therefore, the correct option will be:
<u>a. reflection of all the light at a surface.</u>
Answer:
The ratio is 
Explanation:
Generally the Moment of inertia of a spherical object (shell) is mathematically represented as
Where m is the mass of the spherical object
and r is the radius
Now the the rotational kinetic energy can be mathematically represented as
Where 
is the angular velocity which is mathematically represented as
=> ![w^2 = [\frac{v}{r}] ^2](https://tex.z-dn.net/?f=w%5E2%20%20%3D%20%20%20%5B%5Cfrac%7Bv%7D%7Br%7D%5D%20%5E2)
So
![RE = \frac{1}{2}* [\frac{2}{3} *mr^2] * [\frac{v}{r} ]^2](https://tex.z-dn.net/?f=RE%20%20%3D%20%5Cfrac%7B1%7D%7B2%7D%2A%20%20%5B%5Cfrac%7B2%7D%7B3%7D%20%2Amr%5E2%5D%20%2A%20%20%20%5B%5Cfrac%7Bv%7D%7Br%7D%20%5D%5E2)
Generally the transnational kinetic energy of this motion is mathematically represented as
So
DEFINITION
The light stripes are regions of high clouds, and the dark stripes are regions where we can see down to deeper, darker clouds.
GOES WITH
Which of the following best why we see horizontal "stripes" in photographs of Jupiter and Saturn?
Answer:
Medium A -> medium C -> medium B
Explanation:
Refraction is defined a s the change in the direction of light rays as it moves from one medium to another. The speed of the light in this media depends on the nature and the refractive indices of the media.
Light has the tendency to travel faster through a medium with low refractive index rather than high refractive index.
Comparing this medias based on the above conclusion
Medium A has index of refraction 1.3; medium
B has index of refraction 1.4 and medium
C has index of refraction 1.35
The light will travel faster in medium A since it have the lowest refractive index followed by medium C then medium B.
Ranking of the media in accordance the time it takes for light to travel through these layers are as shown
Medium A -> medium C -> medium B
Answer:
v = 7.67 m/s
Explanation:
Given data:
horizontal distance 11.98 m
Acceleration due to gravity 9.8 m/s^2
Assuming initial velocity is zero
we know that
solving for t
we have
substituing all value for time t
t = 1.56 s
we know that speed is given as
v = 7.67 m/s
