Question

An object is at the distance 20cm from covex lens of focal length 10cm .find image distance and nature of the image​

Answer 1

Answer:

don't know sorry

Explanation:

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Answer 2

Given,

u = 10 cm

The object is placed before the lense so we will put negitave sign.

f = 20 cm

We will take it as a positive because the focal length is always positive.

Formula we will use here:-

1/f = 1/v-1/u

=> 1/20=1/v-1/-10

1/v= 1/20+1/10

1/v=1/20-1/10=1/-20

v= -20

We got the value of we which is -20.

The formation of the image is on the attached sheet.

The object is between the lens and the image, show the image can be virtual. The image and . Object vote are above the principal axis . so we can say that the image is erect.

We found that the images is :-

1. virtual
2. erect