a convex mirror has a focal length of 13 cm a light bulb with diameter

1.	a convex mirror has a focal length of 13 cm a light bulb with diameter of 6 cm is placed 60cm from mirror what is the light bulbs image position and diameter
Answer» Answer: 1.1 cm and -10.7 cm is the correct answer. LIGHT bulb's image position = 1.1cm Diameter of light bulb = -10.7cm Explanation: Given data : A CONVEX MIRROR is given. Focal length = 13 cm diameter = 6 cm Height = 60cm To find: light bulb's image position and diameter Solution 1/f = 1/d1 + 1/d2 1/d1 = 1/f - 1/d2 = 1/(-13) - 1/ 60 = -0. 0769 - 0.0166 = -10 cm We know that, h2/h1 = - d1/d2 h2 = -d1h1/d2 = -10.76/60 = -64. 2/60 = 1.07cm =1.1 cm Hence, 1.1 cm and -10.7 cm is the correct answer. light bulb's image position = 1.1cm Diameter of light bulb = -10.7cm

a convex mirror has a focal length of 13 cm a light bulb with diameter of 6 cm is placed 60cm from mirror what is the light bulbs image position and diameter

Answer»

Answer:

1.1 cm and -10.7 cm is the correct answer.

LIGHT bulb's image position = 1.1cm

Diameter of light bulb = -10.7cm

Explanation:

Given data :

A CONVEX MIRROR is given.

Focal length = 13 cm

diameter = 6 cm

Height = 60cm

To find:

light bulb's image position and diameter

Solution

1/f = 1/d1 + 1/d2

1/d1 = 1/f - 1/d2

= 1/(-13) - 1/ 60

= -0. 0769 - 0.0166

= -10 cm

We know that,

h2/h1 = - d1/d2

h2 = -d1*h1/d2

= -10.7*6/60

= -64. 2/60

= 1.07cm

=1.1 cm

Hence,

1.1 cm and -10.7 cm is the correct answer.

light bulb's image position = 1.1cm

Diameter of light bulb = -10.7cm

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