Answer:
The velocity is
Explanation:
From the question we are told that
The mass of the bullet is
The initial speed of the bullet is
The mass of the target is
The initial velocity of target is
The final velocity of the bullet is is
Generally according to the law of momentum conservation we have that
=>
=>
Answer:
(a) 42.28°
(b) 37.08°
Explanation:
From the principle of refraction of light, when light wave travels from one medium to another medium, we have:
= sinθ
/sinθ
In the given problem, we are given the refractive indices of light which are parallel and perpendicular to the axis of the optical lens as 1.4864 and 1.6584 respectively.
For critical angle θ = θ
, θ
= 90°;
(a)
= sinθ
/sin90°
0.6728 = sinθ
= sinθ
/sin90°
0.60299 = sinθ[tex]_{c}
θ[tex]_{c} = sin^(-1) 0.60299 = 37.08°