Question

25. A candle flame of 1.6 cm high is imaged in a ball bearing of diameter 0.4 cm. If the ball bearing is 20 cm away from the flame, the location and the height of the image is
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Answer 1

Answer:

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Explanation:

PHYSICS

A candle flame 1.6 cm high is imaged in a ball bearing of diameter 0.4 cm. If the ball bearing is 20cm away from the flame, find the location and the height of the image.

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ANSWER

The mirror formula is given as,

u

1

+

v

1

=

R

2

(−20)

1

+

v

1

=

0.2

2

v=0.1cm

The magnification is given as,

H

o

H

i

=−

u

v

1.6

H

i

=−

−20

0.1

H

i

=0.008cm

Thus, the location of the image is 0.1cm and the height of the image is 0.008cm.

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