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
Menu
Anita Grade: 12
        The image of a needle placed 45cm from a lens is formed on a screen placed 90cm on the other side of lens.Find displacement of image if object is moved 5cm away from lens
one year ago

Answers : (1)

SAHIL
3784 Points
										

first of all we will  calculate focal lenght from lens formula 1/v - 1/u = 1/f

 put u = -45

1/90 + 1/45 = 1/f 

it gives f = 30

Now again use lens formula and obtain image distance for u = - 50

you will get v = 75

Displacement = 90 - 75 = 15 cm

 

thanks

keep posting

one year ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies
  • Complete Physics Course - Class 12
  • OFFERED PRICE: Rs. 2,756
  • View Details
  • Complete Physics Course - Class 11
  • OFFERED PRICE: Rs. 2,968
  • View Details

Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!! Click Here for details