A force of 10N propels a 350-g toy rocket upwards. The rocket initially starts from rest and the rocket motor burns for 0.1 s. W
2 answers:
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Answer:
(a) 40.6 degree
Explanation:
When refraction takes place from slab to water, the critical angle is 60 degree.
Use Snell's law
refractive index of water with respect to slab
μs = 1.536
Now for slab air interface, the critical angle is C.
1 / 1.536 = Sin C
C = 40.6 degree