Question

An object of height 2 CM is placed at a distance of 15 centimetre from a concave mirror of focal length 10 centimeter. Draw a scale diagram to locate the image. From the diagram, find the length of the image formed.

Answer 1

★★Question;-

An object of height 2 CM is placed at a distance of 15 centimetre from a concave mirror of focal length 10 centimeter. Draw a scale diagram to locate the image. From the diagram, find the length of the image formed.

★★Given;-

• According to new certesian sign convection object distance $(U) =-15cm$

• Focal length of the concave mirror, $f=-10 cm$

• Height of the object, $h0 =2 cm$

★★Answer;-

★According to Suitable Formula;-

$\frac{1}{f}=\frac{1}{v}+\frac{1}{u}$

$\frac{1}{10} = -\frac{1}{15}+\frac{1}{v}$

$\frac{1}{v} = -\frac{3+2}{30}$

$\boxed{\boxed{{v = -30 cm}}}$

$⇢\frac{Height\:of\:image}{Height\:of\:object} =\frac{-v}{u}$

$⇢\frac{Height\:of\:image}{2} =\frac{-30}{15}$

$Height\:of\:image= - 4cm$

$⇢Nature - Real\:and\:inverted$

$⇢Position - {30}\:cm\:from\:concave\: mirror$

$\boxed{\boxed{{∴Size = 4 cm}}}$

Answer 2

Answer:

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