Question

Placement of another identical prism in an inverted position with respect to the first and allowing the colours
of spectrum to pass through it will
(a) change the spectrum into white light.
(b) change the spectrum into a black band.
(c) keep the spectrum as before.
(d) split into more colours.

Answer 1

(a) change the spectrum into white light.

Answer 2

Answer:

The Placement of another identical prism in an inverted position with respect to the first and allowing the colors of spectrum to pass through it will :  (a) change the spectrum into white light.

Explanation:

• A prism is defined as the three dimensional shape which has two shapes that are identical which faces each other.
• The side faces of the prism are called as rectangles.
• The identical shapes are called as bases.
• The bases can sometimes in the shape of square, triangle, rectangle and polygon.
• The height is of the lateral edge.

• The basic prism is of 4 types. They are:

1) Dispersion

2) Deviation

3) Rotation prism

4) Displacement

• There are two types of identical bases in the prism. They are:

1) Rectangular or parallelogram.

2) Cross-section that is same.

• When the two prisms which are identical is placed inverted with each other it will form a narrow beam of white light that the one prism will emerge it out of the second prism same as white light.
• This effect is caused due to when two prism forms the angle of deflection which are equal and opposing in nature.

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