Question

what is the answer..... ​

Answer 1

here's ur answer..

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Answer 2

Answer:

9)

i) In diamond the light travels the fastest due to more refractive index the light bends fast.

ii)water because of small refractive index the light bends little and slow

10)

1/f = 1/v + 1/u

1/-20 = 1/v + 1/-10

1/v = 1/10 - 1/20

1/v = 2-1/20

1/v = 1/20

v= 20cm

the object is at distance of 20cm at right side.

the nature of mirror is real and inverted

m=-v/u

=-20/-10

=2

m = h'/h

2 = h'/3

h' = 6cm

size of image is 6cm