Last Updated On [03-11-2023]
A light moves from denser to rarer medium. Which of the following is correct?
a)
Energy increases
b)
Frequency increases
c)
Phase changes by 
d)
Velocity increases
A light moves from denser to rarer medium. Which of the following is correct?
a)
Energy increases
b)
Frequency increases
c)
Phase changes by
d)
Velocity increases
Question ID - 152821 :-
A light moves from denser to rarer medium. Which of the following is correct?
a)
Energy increases
b)
Frequency increases
c)
Phase changes by
d)
Velocity increases
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A light moves from denser to rarer medium. Which of the following is correct? |
|||
|
a) |
Energy increases |
b) |
Frequency increases |
|
c) |
Phase changes by |
d) |
Velocity increases |
|
(d) When a ray of light moves from one medium to other, its velocity changes. This change depends on refractive index of the medium. Light travels from denser to rarer medium, |
from medium of higher refractive index to lower refractive index. So, in second (rarer) medium, its velocity increases.Next Question :
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A man is |
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a) |
180 |
b) |
90 |
c) |
85 |
d) |
170 |
tall and his eyes are 
below the top of his head. In order to see his entire height right from toe to head, he uses a plane mirror kept at a distance of 
from him. The minimum length of the plane mirror required is
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