# Isaac Physics:(

The Photoelectric Effect. I’ve been able to answer Part 1 and Part 2, but I’m now stuck on part 3. Any help would be appreciated.

https://isaacphysics.org/questions/the_photoelectric_effect?board=bfl22_photoelectric_effect&stage=a_level

C) The incident light is now replaced by light of exactly half the original wavelength but of the same intensity. What is the new maximum speed of the electrons?
(edited 2 months ago)
Original post by depriveofsocial
The Photoelectric Effect. I’ve been able to answer Part 1 and Part 2, but I’m now stuck on part 3. Any help would be appreciated.

https://isaacphysics.org/questions/the_photoelectric_effect?board=bfl22_photoelectric_effect&stage=a_level

C) The incident light is now replaced by light of exactly half the original wavelength but of the same intensity. What is the new maximum speed of the electrons?

1100000 m/s-1
Original post by depriveofsocial
The Photoelectric Effect. I’ve been able to answer Part 1 and Part 2, but I’m now stuck on part 3. Any help would be appreciated.

https://isaacphysics.org/questions/the_photoelectric_effect?board=bfl22_photoelectric_effect&stage=a_level

C) The incident light is now replaced by light of exactly half the original wavelength but of the same intensity. What is the new maximum speed of the electrons?

1100000m/s-1
Original post by depriveofsocial
The Photoelectric Effect. I’ve been able to answer Part 1 and Part 2, but I’m now stuck on part 3. Any help would be appreciated.

https://isaacphysics.org/questions/the_photoelectric_effect?board=bfl22_photoelectric_effect&stage=a_level

C) The incident light is now replaced by light of exactly half the original wavelength but of the same intensity. What is the new maximum speed of the electrons?

A: 5.0MA
B: 5.0*10^5 ms^-1
C: 1,100,000 ms^-1
Original post by David_hayezz
1100000 m/s-1

Thank you