Question

Late corneal degeneration (develops after 60 years) is inherited as a dominant autosomal trait. Determine the probability of the disease in the family, which is known that the maternal grandparents and all their relatives who lived to 70 years old suffered from this anomaly, and on the father's side all the ancestors were healthy.​

Answer 1

Explanation:

Here is your answer

Correct option is C)

Ray AB strikes the mirror PQ at B and gets reflected along BC according to the laws of reflection. The ray BC incident on mirror QR makes an angle 30

∘

with the mirror. So, the angle of incidence on this mirror is 90

∘

−30

∘

=60

∘

. Hence, the angle of reflection is also 60

∘