Question

pls answer it mahababu 29 its only of 1mark ​

Answer 1

Answer:

38. Angle of incidence.

Lateral displacement of the emergent ray of light increases with increases in angle of incidence.

39. More it will change the direction of a beam of light passing through it

Refractive index is a measure of bending capacity of a medium with respect to other medium. Hence higher refractive index means it will bring more change in the direction of propagation of light passing through it.

I am not sure of this question.

40. Positive, Negative

You didn't ask exact question like it is converging or diverging and I am sure about this question.

41. 1/f = 1/v + 1/u.