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What is angle of emergence ?

Important Questions on Light Energy

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Science>Physics>Light Energy>Prism and Dispersion
Draw a labelled diagram of the refraction of light through a prism.
MEDIUM
Science>Physics>Light Energy>Prism and Dispersion
Explain the dispersion of white light by a glass prism with a labelled diagram.
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Science>Physics>Light Energy>Prism and Dispersion
The order of various colours observed in the spectrum of sunlight is given below. Choose the correct order. 
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Science>Physics>Light Energy>Prism and Dispersion
Write the material that you used to find out the value of refractive index of a prism. What is the necessity of the graph in this experiment?
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Science>Physics>Light Energy>Prism and Dispersion
What is dispersion of light?
MEDIUM
Science>Physics>Light Energy>Prism and Dispersion

How many rectangular surfaces are there in a prism?

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Science>Physics>Light Energy>Prism and Dispersion
Draw a diagram of dispersion of white light by the glass prism.
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Science>Physics>Light Energy>Prism and Dispersion

The refraction of light by a prism is shown in the following figure. Then ∠D is:

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Science>Physics>Light Energy>Prism and Dispersion
The Sun appear reddish early in the morning. Give reason.
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Science>Physics>Light Energy>Prism and Dispersion
What do you mean by Dispersion of white light? Draw the ray diagram to show the dispersion of white light when passes through a prism.
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Science>Physics>Light Energy>Prism and Dispersion

Explain the refraction of light with the help of a Glass Prism.

MEDIUM
Science>Physics>Light Energy>Prism and Dispersion

A student traces the path of a ray of light through a glass prism as shown in the diagram, but leaves it incomplete and unlabelled. Redraw and complete the diagram. Also, label on it ∠i, ∠e, ∠r and ∠D.

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Science>Physics>Light Energy>Prism and Dispersion

What is dispersion of light? Will there be dispersion of white light within a glass slab after refraction when white light is incident on the glass slab at an angle of 45∘?

MEDIUM
Science>Physics>Light Energy>Prism and Dispersion
What do you mean by spectrum of light? Which colour of spectrum deviates the most and which the least?
MEDIUM
Science>Physics>Light Energy>Prism and Dispersion
What is meant by spectrum of light? Which colour of spectrum deviates the most and which the least?
MEDIUM
Science>Physics>Light Energy>Prism and Dispersion
A thin Prims P1 with angle 4° and made from glass of refractive index 1.54 is combined with another thing Prism P2  made from glass of refractive index 1.72 to produce dispersion without deviation. The angle of Prism P2 is :
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Science>Physics>Light Energy>Prism and Dispersion
Two plane mirrors P & Q are kept at ? with respect to each other. Light falls on P is reflected and then fall on Q and is reflected. The emergent ray is opposite to the direction of incident ray. The ? is equal to :
MEDIUM
Science>Physics>Light Energy>Prism and Dispersion
What is dispersion of light? Mention the colour that bends the least and the colour that bends the most when light undergoes dispersion through a prism.
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Science>Physics>Light Energy>Prism and Dispersion

What causes the dispersion of white light? 

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Science>Physics>Light Energy>Prism and Dispersion

Differentiate between a glass slab and a glass prism.