MY CART (5)

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

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: R

There are no items in this cart.
Continue Shopping
Menu
rajan jha Grade: 12
        

1.5mW of 400nm light is directed at a photoelectric cell. If 0.1% of the incident photon produce photoelectrons,find the current in the cell? (Answer is 0.48microA)....PLS answer fast ........

6 years ago

Answers : (1)

vikas askiitian expert
510 Points
										

for wavelength 400 nm , energy of each photon be E=hc/lamda


 n number of photons will have  total energy n(E) ...


power of photon beam is given so


n(E) = 1.5mW .....


n = 1.5/E           (number of photons striking per second)


0.1% photons extract electrons so


ne(number of ejected electrons) = 0.1% of n


now photo current = nq=ne            (e is electronic charge)


put all the values & u will get ans 0.48microA current

6 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies
  • Complete Physics Course - Class 12
  • OFFERED PRICE: R 2,600
  • View Details
  • Complete Physics Course - Class 11
  • OFFERED PRICE: R 2,800
  • View Details

Ask Experts

Have any Question? Ask Experts

Post Question

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