Cross-section view of a prism is triangle ABC in the figure. deviation is observed using this p angle of incidence is equal to the The time taken by light to

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Cross-section view of a prism is the equilateral
triangle ABC in the figure. The minimum
deviation is observed using this prism when the
angle of incidence is equal to the prism angle.
The time taken by light to travel from
P (midpoint of BC) to A is
× 10-¹⁰ s.
(Given, speed of light in vacuum = 3 × 10³ m/s and
√√3
)
cos30° =
10 cm
B
P
10 cm
C
Transcribed Image Text:Cross-section view of a prism is the equilateral triangle ABC in the figure. The minimum deviation is observed using this prism when the angle of incidence is equal to the prism angle. The time taken by light to travel from P (midpoint of BC) to A is × 10-¹⁰ s. (Given, speed of light in vacuum = 3 × 10³ m/s and √√3 ) cos30° = 10 cm B P 10 cm C
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