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प्रश्न
In the following diagram the correctly marked angles are :
(a) ∠A and ∠e
(b) ∠i, ∠A and ∠D
(c) ∠A ∠r and ∠e
(b) ∠A ∠r and ∠D
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उत्तर
The correctly marked angles here are the angle of the prism (A) and the angle of emergent (e).
Hence, the correct answer is ∠A and ∠e
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संबंधित प्रश्न
State the cause of dispersion of white light passing through a glass prism. How did Newton show that white light of sun contains seven colours using two identical glass prisms. Draw a ray diagram to show the path of light when two identical glass prisms are arranged together in inverted position with respect to each other and a narrow beam of white light is allowed to fall obliquely on one of the focus of the first prism.
After tracing the path of a ray of light through a glass prism a student marked the angle of incidence (∠i), angle of refraction (∠r) angle of emergence (∠e) and the angle of deviation (∠D) as shown in the diagram. The correctly marked angles are :
(A) ∠i and ∠r
(B) ∠i and ∠e
(C) ∠i, ∠e and ∠D
(D) ∠i, ∠r and ∠e
Draw a diagram to show how white light can be dispersed into a spectrum by using a glass prism. Mark the various colours of the spectrum.
The coloured light having the maximum speed in glass prism is ______.
Out of air and glass, which is optically rarer? Give reason.
A ray of white light falls on a prism. Draw a ray diagram to show that the prism disperses the white light.
Draw a labeled ray diagram to illustrate the dispersion of a narrow beam of white light when it passes through a glass prism.
What is Newton’s disc?
The periscope is an optical device with a polished surface that reflects the light falling on it.
State the colour which bends:
- The most.
- The least while passing through a glass prism.
