REFRACTION AND TIR

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6 questions
• Q1

For a critical angle of 60 degrees and the refractive index of the first medium is 1.732, the refractive index of the second medium question

1

1.5

1.6

2

20s
• Q2

The deviation produced by reflecting prism in the 2 cases are

90,90

90, 180

180.90

NONE OF THE ABOVE

10s
• Q3

What does the slope of the graph between sin i vs sin r represent

total internal reflection

speed of denser medium

refraction

refractive index

10s
• Q4

Which physical quantity doesn't change when light travels from one medium to another.

WAVELENGTH

INTENSITY

FREQUENCY

SPEED

10s
• Q5

Light has the highest velocity in which medium?

flint glass n=1.70 barium glass n=1.60 crown glass n=1.523water n=1.33 diamond n=2.45

barium glass

WATER

flint glass

diamond

10s
• Q6

A short pulse of white light is incident from air to a glass slab at normal incidence. After travelling through the slab, the first colour to emerge is

white

violet

red

blue

10s

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