Question

A concave mirror of radius of curvature 1mtrs is placed at the bottom of tank of water. The mirror forms an image of sun when it is directly over calculate the distance of image from the mirror for level of water is:
a) 80cm. b) 40cm

Plzzz answer with full explanation and figure...

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Answer 1

Answer:

f = r / 2

= 100/2

=50 m

pi = 50 m

u sin i = 1×sin r

sin i = tan i

sin r = tan r

u tan i = tan r

4 /3.AB/OB

=AB/BI

BI =7.5 cm

PI=40+BI = 40+7.5= 47.5 cm

Answer 2

Answer:

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