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A beam of light travelling in water is incident on a glass which is immersed in the water. The incident beam makes an angle of \(40^o\) with the normal. Calculate the angle of refraction in the glass.

[Refractive index of water = 1.33, Refractive index of glass = 1.5]

A. \(29.36^o\)
B. \(25.37^o\)
C. \(37.21^o\)
D. \(34.75^o\)

View Answer & Discuss (7) JAMB 2023

A light ray passing from air into water at an angle of 30º from the normal in air would

A. make an angle greater than 30\(^0\) in water surface
B. be completely absorbed by the water surface
C. be completely reflected by the water surface
D. make an angle less than 30\(^0\) from the normal in water

View Answer & Discuss JAMB 2024

Which of the following is the best as shaving mirror?

A. Concave mirror
B. Convex mirror
C. plane mirror
D. parabolic mirror

View Answer & Discuss (1) JAMB 2024

Calculate the depth of a swimming pool if the apparent depth is 10cm. ( Refractive index of water = 1.33 )

A. 7.5cm
B. 10.0cm
C. 13.3cm
D. 6.87cm

View Answer & Discuss JAMB 2024

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