Question

Pls solve at least 3 questions of this worksheet
The person who'll give 4-5 correct answer I will thank your 20 answer​

Answer 1

Answer of 1 question

Refractive index of diamond with respect to glass n

dg

=1.6

Refractive index of glass n

g

=1.5

Refractive index of diamond n

d

=?

Refractive index of diamond with respect to glass n

dg

=

n

g

n

d

So,the refractive index of diamond n

d

=n

dg

×n

g

or, n

d

=1.6×1.5=2.4

hence,the refractive index of diamond is 2.4.

Answer of 2 question (a) part

The focal length of the lens is the distance between the lens and the image sensor when the subject is in focus, usually stated in millimeters (e.g., 28 mm, 50 mm, or 100 mm). In the case of zoom lenses, both the minimum and maximum focal lengths are stated, for example 18–55 mm.

(b) part

when the object is shifted to distance of 38 cm u=50−38=12cm

Since u=f, the image will form at infinity.