Question

An object 4 cm high is placed 15 cm from a convex lens of focal length 5 cm draw a Ray diagram and find The position size and nature of the image. Class 10 answer should be only related to physics with answer and explanation!

Answer 1

Explanation:

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Karthik

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Karthik 13:17

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Student 13:17

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An object 4 cm high is placed 15 cm from a convex lens of focal length 5 cm draw a Ray diagram and find The position size and nature of the image. Class 10 answer should be only related to physics with

Karthik 13:17

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Student 13:17

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Karthik 13:18

Object distance given is 15cm which is (u).

Object length(o) = 4 cm.

Focal length(f) = 5 cm.

Thus, magnification(m) is object distance / image distance

m=i/o.

Or, we can say -

1/v - 1/u=1/f

1/v - 1/15 = 1/5

So, 1/v = 1/5 + 1/15

1/v = 4/15

v= 15/4 cm which is the position of the image from the convex lense.

Thus, magnification is (f-v)/f=m

=(5-15/4)/5=m

= 5/20=m

m=1/4.

Now, m=i/o for all lenses

=1/4=image / 4

So, image distance is 1 cm.

Nature of the image will be larger and inverted

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