badge image

Enroll For Free Now & Improve Your Performance.

×
User Icon
User Icon
User Icon
User Icon
User Icon

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
Menu
Grade: 11

                        

how to find The work function of some metals that are listed below. The number of metals which will show photoelectric effect when light of 300 nm wavelength falls on the metal .Li-2.4 Na-2.3 K-2.2 Mg-3.7 Cu-4.8 Ag-4.3 Fe-4.7 Pt-6.3 W -4.75

4 years ago

Answers : (1)

Umakant biswal
5359 Points
							
@ PRETTY 
for finding out the work function u need the kinetic energy. 
as per the einstein photoelectric equation 
ENERGY = WORK FUNCTION + K.E ( MAX ) 
so, by putting the value 
hc/ lambda = work function + ½ mv square 
h and c u knows and lambda is given as 300 nm . 
so, frst of all calculate energy , then put the same in ½ mv square 
m is given e, u find out and then calculate work function from their 
HOPE U CAN CALCULATE NOW 
IF NOT , THEN LET ME KNOW 
ALL THE BEST ..
4 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies


Course Features

  • 731 Video Lectures
  • Revision Notes
  • Previous Year Papers
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Test paper with Video Solution


Course Features

  • 141 Video Lectures
  • Revision Notes
  • Test paper with Video Solution
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions


Ask Experts

Have any Question? Ask Experts

Post Question

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