The ray will not emerge into the air medium from glass medium.
To find the answer, we need to know about the critical angle.
<h3>What's critical angle of glass?</h3>
- Critical angle of a medium can be determined from the relation as sinФ = 1/n, n = refractive index of that medium.
- As glass has refractive index of 1.5, so Critical angle = sin⁻¹(1/1.5) = 42 °
<h3>Why does the light incident at 45° inside a glass not emerge to the air medium?</h3>
- As we got the critical angle of glass is 42°, so the light incident at 45° which is greater than 42° will reflect back into the glass medium instead of emergence into the air medium.
Thus, we can conclude that the light will not emerge into air medium.
Learn more about the critical angle here:
brainly.com/question/15009181
#SPJ4
Answer:
Explanation:
We are given that
Gauge pressure at 3.4 degree Celsius,P=
We have to find the gauge pressure in tire when the temperature rises to 26 degree Celsius.
Atmospheric pressure=
K=273+Degree Celsius
Gauge pressure in tire when the temperature rises to 26 degree Celsius.=
The total energy of the system remains the same.
Answer:
(a) Angular speed of resultant combination will be rev/min
(b) Fraction of total energy loss will be 0.9
Explanation:
We have given angular speed of the first wheel
According to question moment of inertia of second wheel is 9 times the moment of inertia of first wheel
So
(a) Now according to law of conservation of angular momentum
(b) Change in rotational kinetic energy will be equal to .......eqn1
Putting these values in eqn 1
Change in kinetic energy will be 0.9
Answer:
212.5 N/m
Explanation:
Work, W = 1700 J
y1 = 2 m
y2 = 6 m
y = y2 - y1 = 6 - 2 = 4 m
Let K be the spring constant.
Work done is given by
W = 1/2 Ky²
1700 = 0.5 x K x 4 x 4
K = 212.5 N/m
Thus, the spring constant is given by 212.5 N/m.