Physics, asked by btsarmy99, 1 year ago

03) A concave less has focal length of 15 cm. At what distance should the object from the lens be placed so that it forms an image at 10 cm from the lens ? also find the magnification produced by the lens.​

Answers

Answered by Anonymous
1

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GIVEN :

focal length =f=-15 cm after sign conventions

image distance=V=-10cm

object distance=?

by lens formula:

1/f=1/v-1/u

1/u=1/v-1/f

= -1/10+1/15

= -3+2/30

=-1/30

u=-30cm

Magnification=m=v/u

=-10/-30=1/3=0.33


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Answered by abhinandan45
1

Answer:

03) एक अवतल कम में 15 सेमी की फोकल लंबाई होती है। लेंस से वस्तु को कितनी दूरी पर रखा जाना चाहिए ताकि यह लेंस से 10 सेमी पर एक छवि बना सके? लेंस द्वारा उत्पन्न आवर्धन का भी पता लगाएं।

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