Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping

In a pvc pipe two concave lens of same focal length are joined together. A boy observes moon through this pipe. How will the image of the moon look to the boy?

In a pvc pipe two concave lens of same focal length are joined together. A boy observes moon through this pipe. How will the image of the moon look to the boy?

Grade:11

1 Answers

Vikas TU
14149 Points
3 years ago
 We can calculate the effective focal length can be calculated using this formulae =
Feff  = f1f2(f1+f2 –d)
1/ Feff = 1/ f1 + 1/ f2 – d/ f1f2
Here f1 and f2 is negative and d is positive.
f1 = f2 = -ve = -f
Since d = 0
Then effective focal length will be = -f/2
Then using the lens formulae
  • 1/f =1/v-1/u
Then from this  v =-f/2
Hence the image is virtual, erect and diminshed

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free