English

A Ray of Light is Incident as a Normal Ray on the Surface of Separation of Two Different Mediums. What is the Value of the Angle of Incidence in this Case? - Physics

Advertisements
Advertisements

Question

A ray of light is incident as a normal ray on the surface of separation of two different mediums. What is the value of the angle of incidence in this case?

Numerical

Solution

Value of the angle of incidence, ∠i = 0°

shaalaa.com
  Is there an error in this question or solution?
Chapter 3: Refraction of Light - Short Numerical

APPEARS IN

ICSE Physics [English] Class 10
Chapter 3 Refraction of Light
Short Numerical | Q 8.2

RELATED QUESTIONS

The diagram below shows a point source P inside a water container. Four rays A, B, C, D starting from the source P are shown up to the water surface

1) Show in the diagram the path of these rays after striking the water surface.

The Critical Angle for the water-air surface is 48°.

2) Name the phenomenon which the rays B and D exhibit.


If a light ray does not undergo, refraction at the boundary between two media, the angle of incidence is:


What do you mean by the statement 'the critical angle for diamond is 240'?

A ray of light incident at an angle of incidence ‘i’ passes through an equilateral glass prism such that the refracted ray inside the prism is parallel to its base and emerges from the prism at an angle of emergence ‘e’.

How is the angle of emergence ‘e’ related to the angle of incidence ‘i’?


Answer the following question.

Under what conditions are total internal reflection possible? Explain it with a suitable example.


What is a mirage? How does it occur?


A rectangular block of glass ABCD has a refractive index 1.6. A pin is placed midway on the face AB (Figure). When observed from the face AD, the pin shall ______.

  1. appear to be near A.
  2. appear to be near D.
  3. appear to be at the centre of AD.
  4. not be seen at all.

A jar of height h is filled with a transparent liquid of refractive index µ (Figure). At the centre of the jar on the bottom surface is a dot. Find the minimum diameter of a disc, such that when placed on the top surface symmetrically about the centre, the dot is invisible.


State the condition under which total internal reflection occurs. Give the mathematical expression for total internal reflection.


A given ray of light suffers minimum deviation in an equilateral prism P. Additional prism Q and R of identical shape and of the same material as P are now added as shown in the figure. The ray will now suffer ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×