Finding the refractive index of a prism lab activity

Asked by admin @ 20/08/2021 in Physics viewed by 277 People

Lab activity of Finding the refracitive index of a prism

Answered by admin @ 20/08/2021

Answer:

Aim : Finding the refractive index of the prism.
Material required : Prism, piece of white chart of size 20 x 20 cm, pencil, pins,
scale and protractor.
Procedure :

Take a prism and place it on the white chart in such a way that the triangular base of the prism is on the chart.

Draw a line around the prism using a pencil. Remove the prism.

It is a triangle. Name its vertices P, Q and R.

Find the angle between PQ and PR. This is the angle of the prism (A).

Mark M on the side of triangle PQ and also draw a perpendicular to the PQ at M.

Place the centre of the protractor at M and along the normal mark an angle of 30° and then draw line up to M.

This angle is angle of incidence and note it in a table.

Place the prism in its position again.

Now fix two pins vertically on the line at point A and B.

Look for the images of pins through the prism from the other side and fix another two pins at points C and D in such a way that all the four pins appear to lie along same straight line.

Now remove the prism and take out pins.

Draw a line joining the two pin-holes formed by the pins to meet surface PR.

The angle between the normal at N and the emergent ray is the angle of emergence.

Join M and N. A, B, M, N, C, D represent the path of light.

Extend both incident, emergent rays tell they meet at a point ‘O’.

The angle between these two rays is angle of deviation denoted by ‘D’.

Do the same for various angles of incidence such as 40°, 50° etc.

If we take angle of incidence along x-axis and the angle of deviation along y-axis we get the graph as shown in figure.

The refractive index of prism n = sin[(A + D)/2]/sin A/2

I Hope It Will Help!

^_^

A hair dryer with a resistance of 9.6 ohms operates at 120 volts for 2.5 minutes. the total electrical energy used by the dryer during this time interval is

Asked by maham237 @ 13/01/2021 in Physics viewed by 1206 persons

Mind map for light reflection and refraction class 10

Asked by admin @ 23/08/2021 in Physics viewed by 1150 persons

The african cicada is the world's loudest insect, producing a sound intensity level of 107 db at a distance of 0.50 m. what is the intensity of its sound (in w/m2) as heard by someone standing 3.1 m away? express your answer in watts per meter squared.

Asked by maham237 @ 10/01/2021 in Physics viewed by 1101 persons

A thief runs at a speed of 10m s

Asked by admin @ 23/08/2021 in Physics viewed by 1098 persons

A 5.8 x 10 4 watt elevator motor can lift

Asked by maham237 @ 20/06/2021 in Physics viewed by 1082 persons

Finding the refractive index of a prism lab activity

Similar Questions

A prism of refractive index n and angle a

To find refractive index of liquid using concave mirror readings

How do you find the volume of a trapezoidal prism

How to find the volume of a right rectangular prism

How do you find the area of a rectangular prism

How do you find a surface area of a prism

How do u find the volume of a rectangular prism

How do you find a volume of a triangular prism

How do you find the surface area of a prism

How do you find the volume of a triangular prism

How to find the surface area of a prism calculator

How do i find the volume of a triangular prism

How do i find the surface area of a prism

How do i find the volume of a rectangular prism

How can you find the volume of a rectangular prism

Most viewed questions in Physics

Jeevandeep health and physical education std 10 answers pdf

Hc verma physics class 9 solutions of describing motion

How to leave nightmare land answer key

Base area and stability of some objects with different shapes

Which of the following statements about safe lifting are correct

Porous water-absorbing mass of fibers

Absorption of water by filter paper is due to

A composite wire of uniform diameter 3mm

At a distance l 400m from the traffic light

A rocket of mass m is launched straight up with thrust f⃗ thrust.

A hair dryer with a resistance of 9.6 ohms operates at 120 volts for 2.5 minutes. the total electrical energy used by the dryer during this time interval is

Mind map for light reflection and refraction class 10

The african cicada is the world's loudest insect, producing a sound intensity level of 107 db at a distance of 0.50 m. what is the intensity of its sound (in w/m2) as heard by someone standing 3.1 m away? express your answer in watts per meter squared.

A thief runs at a speed of 10m s

A 5.8 x 10 4 watt elevator motor can lift