1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
hichkok12 [17]
3 years ago
5

A ray of light travels across a liquid-to-glass interface. if the indices of refraction for the liquid and glass are, respective

ly, 1.75 and 1.52, what is the critical angle at this interface?
Physics
1 answer:
prisoha [69]3 years ago
7 0
When it comes to optics, Snell's law is the basic formula to be used. If you notice, when light hits the water, the light does not travel in the same direction. After, it hits the water, it changes in angle. Light becomes refracted. This is observed when your hands tend to become bigger if you place it underwater. The formula for Snell's Law is

n₁ sin θ₁ = n₂sin θ₂, where n is the index of refraction. This depends on the type of medium. For example, for air, n=1. The parameters θ₁ is the angle of incidence, and θ₂ is the angle of refraction. Critical angle is the incident angle needed so that the refract angle is 90°. So, modifying the equation:

n₁ sin θcrit = n₂sin 90°, since sin 90°=1,
sin θcrit = n₂/n₁
θcrit = sin ⁻¹ (n₂/n₁)

Since liquid comes first before glass, n₁=1.75 and n₂=1.52. Substituting,
θcrit = sin ⁻¹ (1.52/1.75)
θcrit = 60.29°

You might be interested in
What happens when light bounces off an object
Sever21 [200]
Absorbtion consists of when light strikes on an object and bounces off. 
3 0
3 years ago
Read 2 more answers
A ball is tossed with a velocity of 10 m/s directed vertically upward from a window located 20 m above the ground. Determine the
marusya05 [52]

Answer:

Explanation:

Given

Initial velocity of ball u=10\ m/s

height of window h=20\ m

Using Equation of motion

y=ut+\frac{1}{2}at^2

where u=initial velocity

t=time

a=acceleration

As ball is already is at a height of 20 m so

Y=ut+\frac{1}{2}at^2+20

Y=10\times t+0.5\times (-9.8)t^2+20

Y=-4.9t^2+10t+20

(b)highest point is obtained at v=0

v^2-u^2=2as

where

v=final velocity

u=initial velocity

a=acceleration

s=displacement

(0)-10^2=2\times (-9.8)\times s

s=\frac{100}{19.6}

s=5.102\ m

Highest Point will be s+20=25.102\ m

(c)Time taken when the ball hit the ground i.e. at Y=0

-4.9t^2+10t+20=0

t=3.28\ s

impact velocity v=\sqrt{2\times 9.8\times 25.102}

v=22.181\ m/s

7 0
3 years ago
A 68 kg runner exerts a force of 59 N. what is the acceleration of the runner
LuckyWell [14K]
<span>.87 m/s^2 ,hope this helps!!!!!!</span>
8 0
3 years ago
Read 2 more answers
Nellie newton swings a rock into a circular path while holding an attached string overhead. the string makes a 45-degree angle t
taurus [48]
Horizontal component of the string tension
6 0
3 years ago
In a long straight wire, what current is required to exert a 1.0μN force on a 1.0μC charge moving at 1.5×106m/s parallel to the
Bas_tet [7]

Answer:

Current in the wire is given as

i = 1.17 \times 10^{-7} A

Explanation:

magnetic field due to long current carrying wire is given as

B = \frac{\mu_0 i}{2\pi r}

so we have magnetic force on moving charge is given as

F = qvB

so we have

F = (1\times 10^{-6})(1.5 \times 10^6)(\frac{\mu_0 i}{2\pi (0.35)})

so we have

1\times 10^{-6} = 1.5 \times \frac{2 i}{0.35}

i = 1.17 \times 10^{-7} A

6 0
3 years ago
Other questions:
  • A current of 9 A flows through an electric device with a resistance of 43 Ω. What must be the applied voltage in this particular
    8·2 answers
  • A. How does doubling the height of the cylinder affect its GPE?
    7·1 answer
  • What stress causes this type of fault to form?
    10·2 answers
  • Starting at 48th Street, Dylan rides his bike due east on Meridian Road with the wind at his back. He rides for 20 min at 15 mph
    10·1 answer
  • The left face of a biconvex lens has a radius of curvature of magnitude 11.7 cm, and the right face has a radius of curvature of
    14·1 answer
  • Ride and average of 15mph for 30 miles, how long does it take?
    8·1 answer
  • What type of clothing is most suitable to facilitate this? A. a pair of pants with a cord B. a flame-resistant pair of pants C.
    13·1 answer
  • What happens when light strikes a translucent object??
    13·2 answers
  • The genetic material of the new bacteria is usually
    11·1 answer
  • How can scientists eliminate the chance of error in their investigations
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!